diff --git a/aurorastation.dme b/aurorastation.dme
index 975cc1e88c8..87b09b2bbfc 100644
--- a/aurorastation.dme
+++ b/aurorastation.dme
@@ -1425,6 +1425,7 @@
 #include "code\modules\clothing\rings\rings.dm"
 #include "code\modules\clothing\sets\acting_captain.dm"
 #include "code\modules\clothing\sets\captain.dm"
+#include "code\modules\clothing\sets\infiltrator.dm"
 #include "code\modules\clothing\sets\laser_tag.dm"
 #include "code\modules\clothing\shoes\colour.dm"
 #include "code\modules\clothing\shoes\jobs.dm"
diff --git a/code/__defines/items_clothing.dm b/code/__defines/items_clothing.dm
index 3e3176bbea5..6639cb065cb 100644
--- a/code/__defines/items_clothing.dm
+++ b/code/__defines/items_clothing.dm
@@ -34,14 +34,13 @@
 
 //Flags for items (equipment)
 #define THICKMATERIAL          0x1   // Prevents syringes, parapens and hyposprays if equiped to slot_suit or slot_head.
-#define STOPPRESSUREDAMAGE     0x2   // Counts towards pressure protection. Note that like temperature protection, body_parts_covered is considered here as well.
-#define AIRTIGHT               0x4   // Functions with internals.
-#define NOSLIP                 0x8   // Prevents from slipping on wet floors, in space, etc.
-#define BLOCK_GAS_SMOKE_EFFECT 0x10  // Blocks the effect that chemical clouds would have on a mob -- glasses, mask and helmets ONLY! (NOTE: flag shared with ONESIZEFITSALL)
-#define FLEXIBLEMATERIAL       0x20  // At the moment, masks with this flag will not prevent eating even if they are covering your face.
-#define SOUNDPROTECTION        0x40  // whether wearing this item will protect you from loud noises such as flashbangs | this only works for ear slots or the head slot
-#define LIGHTSTEP              0x80  // When applied to footwear, this makes it so that they don't trigger things like landmines and mouse traps
-#define INJECTIONPORT          0x100 // Allows syringes and hyposprays to inject, even if the material is thick
+#define AIRTIGHT               0x2   // Functions with internals.
+#define NOSLIP                 0x4   // Prevents from slipping on wet floors, in space, etc.
+#define BLOCK_GAS_SMOKE_EFFECT 0x8  // Blocks the effect that chemical clouds would have on a mob -- glasses, mask and helmets ONLY! (NOTE: flag shared with ONESIZEFITSALL)
+#define FLEXIBLEMATERIAL       0x10  // At the moment, masks with this flag will not prevent eating even if they are covering your face.
+#define SOUNDPROTECTION        0x20  // whether wearing this item will protect you from loud noises such as flashbangs | this only works for ear slots or the head slot
+#define LIGHTSTEP              0x40  // When applied to footwear, this makes it so that they don't trigger things like landmines and mouse traps
+#define INJECTIONPORT          0x80 // Allows syringes and hyposprays to inject, even if the material is thick
 
 // Flags for pass_flags.
 #define PASSTABLE		0x1
@@ -171,6 +170,13 @@
 #define WARNING_LOW_PRESSURE  50  // This is when the gray low pressure icon is displayed. (it is 2.5 * HAZARD_LOW_PRESSURE)
 #define  HAZARD_LOW_PRESSURE  20  // This is when the black ultra-low pressure icon is displayed. (This one is set as a constant)
 
+#define FIRESUIT_MAX_PRESSURE       20 * ONE_ATMOSPHERE  // Firesuits and atmos voidsuits
+#define RIG_MAX_PRESSURE            10 * ONE_ATMOSPHERE  // Rigs
+#define LIGHT_RIG_MAX_PRESSURE       5 * ONE_ATMOSPHERE  // Rigs
+#define ENG_VOIDSUIT_MAX_PRESSURE   10 * ONE_ATMOSPHERE
+#define VOIDSUIT_MAX_PRESSURE        5 * ONE_ATMOSPHERE
+#define SPACE_SUIT_MAX_PRESSURE      2 * ONE_ATMOSPHERE
+
 #define TEMPERATURE_DAMAGE_COEFFICIENT  1.5 // This is used in handle_temperature_damage() for humans, and in reagents that affect body temperature. Temperature damage is multiplied by this amount.
 #define BODYTEMP_AUTORECOVERY_DIVISOR   12  // This is the divisor which handles how much of the temperature difference between the current body temperature and 310.15K (optimal temperature) humans auto-regenerate each tick. The higher the number, the slower the recovery. This is applied each tick, so long as the mob is alive.
 #define BODYTEMP_AUTORECOVERY_MINIMUM   1   // Minimum amount of kelvin moved toward 310.15K per tick. So long as abs(310.15 - bodytemp) is more than 50.
diff --git a/code/datums/uplink/devices and tools.dm b/code/datums/uplink/devices and tools.dm
index 0fb04b8f0ad..0d9731a93c8 100644
--- a/code/datums/uplink/devices and tools.dm	
+++ b/code/datums/uplink/devices and tools.dm	
@@ -87,6 +87,12 @@
 	item_cost = 2
 	path = /obj/item/storage/box/syndie_kit/space
 
+/datum/uplink_item/item/tools/infiltration_kit
+	name = "Infiltration Kit"
+	desc = "A large infiltration case containing an undersuit, a mask, gloves, and shoes. It will protect you against the vacuum of space and two atmospheres of overpressure."
+	item_cost = 2
+	path = /obj/item/storage/toolbox/infiltration
+
 /datum/uplink_item/item/tools/thermal
 	name = "Thermal Imaging Glasses"
 	item_cost = 2
diff --git a/code/game/objects/items.dm b/code/game/objects/items.dm
index 47c8d508711..cb4de247051 100644
--- a/code/game/objects/items.dm
+++ b/code/game/objects/items.dm
@@ -22,6 +22,8 @@
 	var/cold_protection = 0 //flags which determine which body parts are protected from cold. Use the HEAD, UPPER_TORSO, LOWER_TORSO, etc. flags. See setup.dm
 	var/max_heat_protection_temperature //Set this variable to determine up to which temperature (IN KELVIN) the item protects against heat damage. Keep at null to disable protection. Only protects areas set by heat_protection flags
 	var/min_cold_protection_temperature //Set this variable to determine down to which temperature (IN KELVIN) the item protects against cold damage. 0 is NOT an acceptable number due to if(varname) tests!! Keep at null to disable protection. Only protects areas set by cold_protection flags
+	var/max_pressure_protection // Set this variable if the item protects its wearer against high pressures below an upper bound. Keep at null to disable protection.
+	var/min_pressure_protection // Set this variable if the item protects its wearer against low pressures above a lower bound. Keep at null to disable protection. 0 represents protection against hard vacuum.
 
 	var/datum/action/item_action/action
 	var/action_button_name //It is also the text which gets displayed on the action button. If not set it defaults to 'Use [name]'. If it's not set, there'll be no button.
@@ -920,3 +922,18 @@ modules/mob/living/carbon/human/life.dm if you die, you will be zoomed out.
 	if(isFlameSource())
 		return TRUE
 	return FALSE
+
+/obj/item/proc/get_pressure_weakness(pressure, zone)
+	. = 1
+	if(pressure > ONE_ATMOSPHERE)
+		if(max_pressure_protection != null)
+			if(max_pressure_protection < pressure)
+				return min(1, round((pressure - max_pressure_protection) / max_pressure_protection, 0.01))
+			else
+				return 0
+	if(pressure < ONE_ATMOSPHERE)
+		if(min_pressure_protection != null)
+			if(min_pressure_protection > pressure)
+				return min(1, round((min_pressure_protection - pressure) / min_pressure_protection, 0.01))
+			else
+				return 0
diff --git a/code/modules/clothing/head/hardhat.dm b/code/modules/clothing/head/hardhat.dm
index 24d1c0df1f3..4a856b14528 100644
--- a/code/modules/clothing/head/hardhat.dm
+++ b/code/modules/clothing/head/hardhat.dm
@@ -17,6 +17,7 @@
 	flags_inv = 0
 	w_class = ITEMSIZE_NORMAL
 	siemens_coefficient = 0.9
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
 	light_wedge = LIGHT_WIDE
 	drop_sound = 'sound/items/drop/helm.ogg'
 	pickup_sound = 'sound/items/pickup/helm.ogg'
diff --git a/code/modules/clothing/sets/infiltrator.dm b/code/modules/clothing/sets/infiltrator.dm
new file mode 100644
index 00000000000..8a37caad2a5
--- /dev/null
+++ b/code/modules/clothing/sets/infiltrator.dm
@@ -0,0 +1,75 @@
+/obj/item/clothing/mask/breath/infiltrator
+	name = "infiltration balaclava"
+	desc = "A close-fitting airtight balaclava that can be connected to an air supply."
+	icon = 'icons/clothing/kit/infiltrator.dmi'
+	icon_state = "mask"
+	item_state = "mask"
+	icon_auto_adapt = TRUE
+	icon_supported_species_tags = list("una", "taj")
+	contained_sprite = TRUE
+	adjustable = FALSE
+	item_flags = THICKMATERIAL | INJECTIONPORT | AIRTIGHT
+	flags_inv = HIDEFACE|BLOCKHAIR
+	body_parts_covered = HEAD|FACE|EYES
+	max_pressure_protection = SPACE_SUIT_MAX_PRESSURE
+	min_pressure_protection = 0
+
+/obj/item/clothing/under/infiltrator
+	name = "infiltration suit"
+	desc = "A tight undersuit with thin pieces of armor bolted to it. It's airtight."
+	icon = 'icons/clothing/kit/infiltrator.dmi'
+	icon_state = "uniform"
+	item_state = "uniform"
+	contained_sprite = TRUE
+	item_flags = THICKMATERIAL | INJECTIONPORT | AIRTIGHT
+	armor = list(
+		melee = ARMOR_MELEE_SMALL,
+		bullet = ARMOR_BALLISTIC_SMALL,
+		laser = ARMOR_LASER_SMALL
+	)
+	max_pressure_protection = SPACE_SUIT_MAX_PRESSURE
+	min_pressure_protection = 0
+
+/obj/item/clothing/gloves/infiltrator
+	name = "infiltration gloves"
+	desc = "Tight insulated gloves with interwoven self-cleaning material. It's airtight."
+	icon = 'icons/clothing/kit/infiltrator.dmi'
+	icon_state = "gloves"
+	item_state = "gloves"
+	contained_sprite = TRUE
+	siemens_coefficient = 0
+	permeability_coefficient = 0.05
+	germ_level = 0
+	fingerprint_chance = 0
+	item_flags = THICKMATERIAL | INJECTIONPORT | AIRTIGHT
+	max_pressure_protection = SPACE_SUIT_MAX_PRESSURE
+	min_pressure_protection = 0
+	species_restricted = null
+
+/obj/item/clothing/shoes/infiltrator
+	name = "infiltration shoes"
+	desc = "Tight shoes with in-built Silent-Soles. It's airtight."
+	icon = 'icons/clothing/kit/infiltrator.dmi'
+	icon_state = "shoes"
+	item_state = "shoes"
+	contained_sprite = TRUE
+	silent = TRUE
+	item_flags = THICKMATERIAL | INJECTIONPORT | AIRTIGHT
+	max_pressure_protection = SPACE_SUIT_MAX_PRESSURE
+	min_pressure_protection = 0
+	species_restricted = null
+
+/obj/item/storage/toolbox/infiltration
+	name = "infiltration case"
+	desc = "A case with an ominous red \"S\" painted on it. It seems pretty hefty."
+	icon = 'icons/clothing/kit/infiltrator.dmi'
+	icon_state = "case"
+	item_state = "case"
+	contained_sprite = TRUE
+	item_icons = null
+	starts_with = list(
+		/obj/item/clothing/mask/breath/infiltrator = 1,
+		/obj/item/clothing/under/infiltrator = 1,
+		/obj/item/clothing/gloves/infiltrator = 1,
+		/obj/item/clothing/shoes/infiltrator = 1
+	)
\ No newline at end of file
diff --git a/code/modules/clothing/spacesuits/breaches.dm b/code/modules/clothing/spacesuits/breaches.dm
index 75dec914f42..2f9e6c3eb88 100644
--- a/code/modules/clothing/spacesuits/breaches.dm
+++ b/code/modules/clothing/spacesuits/breaches.dm
@@ -228,3 +228,8 @@ var/global/list/breach_burn_descriptors = list(
 	if(can_breach && breaches && breaches.len)
 		for(var/datum/breach/B in breaches)
 			to_chat(user, "<span class='danger'>It has \a [B.descriptor].</span>")
+
+/obj/item/clothing/suit/space/get_pressure_weakness(pressure)
+	. = ..()
+	if(can_breach && damage)
+		. = min(1, . + damage * 0.1)
\ No newline at end of file
diff --git a/code/modules/clothing/spacesuits/miscellaneous.dm b/code/modules/clothing/spacesuits/miscellaneous.dm
index 550291d0d1a..bdfcb04f46c 100644
--- a/code/modules/clothing/spacesuits/miscellaneous.dm
+++ b/code/modules/clothing/spacesuits/miscellaneous.dm
@@ -17,7 +17,8 @@
 		bio = ARMOR_BIO_SHIELDED, 
 		rad = ARMOR_RAD_RESISTANT
 	)
-	item_flags = STOPPRESSUREDAMAGE | THICKMATERIAL
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
+	min_pressure_protection = 0
 	flags_inv = BLOCKHAIR
 	siemens_coefficient = 0.6
 
@@ -34,7 +35,6 @@
 		bullet = ARMOR_BALLISTIC_MINOR,
 		laser = ARMOR_LASER_MINOR
 	)
-	item_flags = STOPPRESSUREDAMAGE
 	flags_inv = BLOCKHAIR
 	siemens_coefficient = 0.9
 
@@ -44,7 +44,6 @@
 	desc = "Ho ho ho. Merrry X-mas!"
 	icon_state = "santahat"
 	item_state = "santahat"
-	item_flags = STOPPRESSUREDAMAGE
 	flags_inv = BLOCKHAIR
 	body_parts_covered = HEAD
 
@@ -54,7 +53,6 @@
 	icon_state = "santa"
 	item_state = "santa"
 	slowdown = 0
-	item_flags = STOPPRESSUREDAMAGE
 	allowed = list(/obj/item) //for stuffing exta special presents
 
 //Space pirate outfit
@@ -72,7 +70,6 @@
 		bio = ARMOR_BIO_SMALL, 
 		rad = ARMOR_RAD_MINOR
 	)
-	item_flags = STOPPRESSUREDAMAGE
 	flags_inv = BLOCKHAIR
 	body_parts_covered = 0
 	siemens_coefficient = 0.4
diff --git a/code/modules/clothing/spacesuits/rig/rig.dm b/code/modules/clothing/spacesuits/rig/rig.dm
index 210b221e697..835f09b985d 100644
--- a/code/modules/clothing/spacesuits/rig/rig.dm
+++ b/code/modules/clothing/spacesuits/rig/rig.dm
@@ -27,6 +27,9 @@
 	)
 	min_cold_protection_temperature = SPACE_SUIT_MIN_COLD_PROTECTION_TEMPERATURE
 	max_heat_protection_temperature = SPACE_SUIT_MAX_HEAT_PROTECTION_TEMPERATURE
+	max_pressure_protection = RIG_MAX_PRESSURE
+	min_pressure_protection = 0
+
 	siemens_coefficient = 0.35
 	permeability_coefficient = 0.1
 	unacidable = 1
@@ -86,7 +89,7 @@
 	var/offline_slowdown = 3                                  // If the suit is deployed and unpowered, it sets slowdown to this.
 	var/vision_restriction = TINT_NONE
 	var/offline_vision_restriction = TINT_HEAVY
-	var/airtight = 1 //If set, will adjust AIRTIGHT and STOPPRESSUREDAMAGE flags on components. Otherwise it should leave them untouched.
+	var/airtight = 1 //If set, will adjust the AIRTIGHT flag on components. Otherwise it should leave them untouched.
 
 	var/emp_protection = 0
 
@@ -210,7 +213,9 @@
 		if(!piece) continue
 		piece.icon_state = "[initial(icon_state)]"
 		if(airtight)
-			piece.item_flags &= ~(STOPPRESSUREDAMAGE|AIRTIGHT)
+			piece.max_pressure_protection = initial(piece.max_pressure_protection)
+			piece.min_pressure_protection = initial(piece.min_pressure_protection)
+			piece.item_flags &= ~AIRTIGHT
 	update_icon(1)
 
 /obj/item/rig/proc/toggle_seals(var/mob/initiator,var/instant)
@@ -341,9 +346,13 @@
 /obj/item/rig/proc/update_component_sealed()
 	for(var/obj/item/piece in list(helmet,boots,gloves,chest))
 		if(canremove)
-			piece.item_flags &= ~(STOPPRESSUREDAMAGE|AIRTIGHT)
+			piece.max_pressure_protection = initial(piece.max_pressure_protection)
+			piece.min_pressure_protection = initial(piece.min_pressure_protection)
+			piece.item_flags &= ~AIRTIGHT
 		else
-			piece.item_flags |=  (STOPPRESSUREDAMAGE|AIRTIGHT)
+			piece.max_pressure_protection = max_pressure_protection
+			piece.min_pressure_protection = min_pressure_protection
+			piece.item_flags |= AIRTIGHT
 	update_icon(1)
 
 /obj/item/rig/process()
diff --git a/code/modules/clothing/spacesuits/rig/rig_pieces.dm b/code/modules/clothing/spacesuits/rig/rig_pieces.dm
index 77ac4d5d91e..eb95e3895bf 100644
--- a/code/modules/clothing/spacesuits/rig/rig_pieces.dm
+++ b/code/modules/clothing/spacesuits/rig/rig_pieces.dm
@@ -57,7 +57,7 @@
 	heat_protection =    UPPER_TORSO|LOWER_TORSO|LEGS|ARMS
 	cold_protection =    UPPER_TORSO|LOWER_TORSO|LEGS|ARMS
 	flags_inv =          HIDEJUMPSUIT|HIDETAIL
-	item_flags =              STOPPRESSUREDAMAGE | THICKMATERIAL | AIRTIGHT
+	item_flags =         THICKMATERIAL|AIRTIGHT
 	slowdown = 0
 	//will reach 10 breach damage after 25 laser carbine blasts, 3 revolver hits, or ~1 PTR hit. Completely immune to smg or sts hits.
 	breach_threshold = 38
diff --git a/code/modules/clothing/spacesuits/rig/suits/light.dm b/code/modules/clothing/spacesuits/rig/suits/light.dm
index c8c9071f20e..7cd9efeb591 100644
--- a/code/modules/clothing/spacesuits/rig/suits/light.dm
+++ b/code/modules/clothing/spacesuits/rig/suits/light.dm
@@ -14,9 +14,11 @@
 	)
 	emp_protection = 10
 	slowdown = 0
-	item_flags = STOPPRESSUREDAMAGE | THICKMATERIAL
+	item_flags = THICKMATERIAL
 	offline_slowdown = 0
 	offline_vision_restriction = 0
+	max_pressure_protection = LIGHT_RIG_MAX_PRESSURE
+	min_pressure_protection = 0
 
 	chest_type = /obj/item/clothing/suit/space/rig/light
 	helm_type =  /obj/item/clothing/head/helmet/space/rig/light
@@ -240,7 +242,6 @@
 		bio = ARMOR_BIO_SHIELDED,
 		rad = ARMOR_RAD_SHIELDED
 	)
-	item_flags = STOPPRESSUREDAMAGE | THICKMATERIAL
 	slowdown = -1
 	offline_slowdown = 0
 	airtight = 1
diff --git a/code/modules/clothing/spacesuits/rig/suits/station.dm b/code/modules/clothing/spacesuits/rig/suits/station.dm
index 7a7fd7b9311..da7841deaed 100644
--- a/code/modules/clothing/spacesuits/rig/suits/station.dm
+++ b/code/modules/clothing/spacesuits/rig/suits/station.dm
@@ -79,6 +79,8 @@
 	offline_slowdown = 7
 	offline_vision_restriction = TINT_HEAVY
 	emp_protection = -20
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
+	min_pressure_protection = 0
 
 	helm_type = /obj/item/clothing/head/helmet/space/rig/industrial
 	chest_type = /obj/item/clothing/suit/space/rig/industrial
@@ -173,6 +175,8 @@
 	offline_slowdown = 3
 	offline_vision_restriction = 0
 	max_heat_protection_temperature = FIRESUIT_MAX_HEAT_PROTECTION_TEMPERATURE / 1.5 // Good against fires, but not as good as a proper firesuit / atmos voidsuit
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
+	min_pressure_protection = 0
 
 	helm_type = /obj/item/clothing/head/helmet/space/rig/ce
 	glove_type = /obj/item/clothing/gloves/rig/ce
diff --git a/code/modules/clothing/spacesuits/spacesuits.dm b/code/modules/clothing/spacesuits/spacesuits.dm
index ce7e2273b9b..cfeb344b6fb 100644
--- a/code/modules/clothing/spacesuits/spacesuits.dm
+++ b/code/modules/clothing/spacesuits/spacesuits.dm
@@ -6,7 +6,7 @@
 	name = "space helmet"
 	icon_state = "space"
 	desc = "A special helmet designed for work in a hazardous, low-pressure environment."
-	item_flags = STOPPRESSUREDAMAGE | THICKMATERIAL | INJECTIONPORT | AIRTIGHT
+	item_flags = THICKMATERIAL | INJECTIONPORT | AIRTIGHT
 	item_state_slots = list(
 		slot_l_hand_str = "s_helmet",
 		slot_r_hand_str = "s_helmet"
@@ -20,6 +20,8 @@
 	body_parts_covered = HEAD|FACE|EYES
 	cold_protection = HEAD
 	min_cold_protection_temperature = SPACE_HELMET_MIN_COLD_PROTECTION_TEMPERATURE
+	min_pressure_protection = 0
+	max_pressure_protection = SPACE_SUIT_MAX_PRESSURE
 	siemens_coefficient = 0.5
 	species_restricted = list("exclude",BODYTYPE_DIONA,BODYTYPE_GOLEM)
 	flash_protection = FLASH_PROTECTION_MAJOR
@@ -40,7 +42,7 @@
 	w_class = ITEMSIZE_LARGE//bulky item
 	gas_transfer_coefficient = 0.01
 	permeability_coefficient = 0.02
-	item_flags = STOPPRESSUREDAMAGE|THICKMATERIAL|INJECTIONPORT
+	item_flags = THICKMATERIAL|INJECTIONPORT
 	body_parts_covered = UPPER_TORSO|LOWER_TORSO|LEGS|FEET|ARMS|HANDS
 	allowed = list(/obj/item/device/flashlight,/obj/item/tank/emergency_oxygen,/obj/item/device/suit_cooling_unit)
 	slowdown = 3
@@ -51,6 +53,8 @@
 	flags_inv = HIDEGLOVES|HIDESHOES|HIDEJUMPSUIT|HIDETAIL
 	cold_protection = UPPER_TORSO | LOWER_TORSO | LEGS | FEET | ARMS | HANDS
 	min_cold_protection_temperature = SPACE_SUIT_MIN_COLD_PROTECTION_TEMPERATURE
+	min_pressure_protection = 0
+	max_pressure_protection = SPACE_SUIT_MAX_PRESSURE
 	siemens_coefficient = 0.5
 	species_restricted = list("exclude",BODYTYPE_DIONA,BODYTYPE_GOLEM)
 
diff --git a/code/modules/clothing/spacesuits/void/station.dm b/code/modules/clothing/spacesuits/void/station.dm
index 8538f7eee0f..e363728e30f 100644
--- a/code/modules/clothing/spacesuits/void/station.dm
+++ b/code/modules/clothing/spacesuits/void/station.dm
@@ -16,6 +16,7 @@
 		bio = ARMOR_BIO_SHIELDED,
 		rad = ARMOR_RAD_RESISTANT
 	)
+	max_pressure_protection = ENG_VOIDSUIT_MAX_PRESSURE
 	light_overlay = "helmet_light_dual_low"
 	brightness_on = 6
 
@@ -37,6 +38,7 @@
 		bio = ARMOR_BIO_SHIELDED,
 		rad = ARMOR_RAD_RESISTANT
 	)
+	max_pressure_protection = ENG_VOIDSUIT_MAX_PRESSURE
 	allowed = list(/obj/item/device/flashlight,/obj/item/tank,/obj/item/device/suit_cooling_unit,/obj/item/storage/bag/ore,/obj/item/device/t_scanner,/obj/item/pickaxe,/obj/item/material/twohanded/fireaxe,/obj/item/rfd/construction,/obj/item/storage/bag/inflatable)
 
 //Mining rig
@@ -172,6 +174,7 @@
 		rad = ARMOR_RAD_SMALL
 	)
 	max_heat_protection_temperature = FIRE_HELMET_MAX_HEAT_PROTECTION_TEMPERATURE + 10000 // It is a suit designed for fire, enclosed
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
 	light_overlay = "helmet_light_dual_low"
 	brightness_on = 6
 
@@ -192,6 +195,7 @@
 		bio = ARMOR_BIO_SHIELDED,
 		rad = ARMOR_RAD_SMALL
 	)
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
 	allowed = list(/obj/item/device/flashlight,/obj/item/tank,/obj/item/device/suit_cooling_unit,/obj/item/storage/bag/ore,/obj/item/device/t_scanner,/obj/item/pickaxe,/obj/item/material/twohanded/fireaxe,/obj/item/rfd/construction,/obj/item/storage/bag/inflatable)
 	max_heat_protection_temperature = FIRESUIT_MAX_HEAT_PROTECTION_TEMPERATURE + 10000 // It is a suit designed for fire, enclosed
 
@@ -259,4 +263,4 @@
 		bomb = ARMOR_BOMB_PADDED,
 		bio = ARMOR_BIO_SHIELDED,
 		rad = ARMOR_RAD_RESISTANT
-	)
\ No newline at end of file
+	)
diff --git a/code/modules/clothing/spacesuits/void/void.dm b/code/modules/clothing/spacesuits/void/void.dm
index 638ade5ea5d..c53bff8310d 100644
--- a/code/modules/clothing/spacesuits/void/void.dm
+++ b/code/modules/clothing/spacesuits/void/void.dm
@@ -15,6 +15,8 @@
 		rad = ARMOR_RAD_MINOR
 	)
 	max_heat_protection_temperature = SPACE_SUIT_MAX_HEAT_PROTECTION_TEMPERATURE
+	max_pressure_protection = VOIDSUIT_MAX_PRESSURE
+	min_pressure_protection = 0
 	siemens_coefficient = 0.5
 
 	//Species-specific stuff.
diff --git a/code/modules/clothing/suits/armor.dm b/code/modules/clothing/suits/armor.dm
index 71af76981a9..0ebdbbb1f97 100644
--- a/code/modules/clothing/suits/armor.dm
+++ b/code/modules/clothing/suits/armor.dm
@@ -106,7 +106,7 @@
 	item_state = "swat_suit"
 	gas_transfer_coefficient = 0.01
 	permeability_coefficient = 0.01
-	item_flags = STOPPRESSUREDAMAGE | THICKMATERIAL
+	item_flags = THICKMATERIAL
 	body_parts_covered = UPPER_TORSO|LOWER_TORSO|LEGS|FEET|ARMS
 	allowed = list(/obj/item/gun,/obj/item/ammo_magazine,/obj/item/ammo_casing,/obj/item/melee/baton,/obj/item/handcuffs,/obj/item/tank/emergency_oxygen)
 	slowdown = 1
@@ -119,6 +119,8 @@
 		bio = ARMOR_BIO_SHIELDED,
 		rad = ARMOR_RAD_SMALL
 	)
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
+	min_pressure_protection = 0
 	flags_inv = HIDEGLOVES|HIDESHOES|HIDEJUMPSUIT
 	cold_protection = UPPER_TORSO | LOWER_TORSO | LEGS | FEET | ARMS | HANDS
 	min_cold_protection_temperature = SPACE_SUIT_MIN_COLD_PROTECTION_TEMPERATURE
diff --git a/code/modules/clothing/suits/utility.dm b/code/modules/clothing/suits/utility.dm
index 7daa634b93f..7087ddc81f4 100644
--- a/code/modules/clothing/suits/utility.dm
+++ b/code/modules/clothing/suits/utility.dm
@@ -22,6 +22,7 @@
 	allowed = list(/obj/item/device/flashlight,/obj/item/tank/emergency_oxygen,/obj/item/extinguisher)
 	slowdown = 1.0
 	flags_inv = HIDEWRISTS|HIDEGLOVES|HIDESHOES|HIDEJUMPSUIT|HIDETAIL
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
 	heat_protection = UPPER_TORSO|LOWER_TORSO|LEGS|FEET|ARMS|HANDS
 	max_heat_protection_temperature = FIRESUIT_MAX_HEAT_PROTECTION_TEMPERATURE
 	cold_protection = UPPER_TORSO | LOWER_TORSO | LEGS | FEET | ARMS | HANDS
@@ -58,7 +59,7 @@
 	desc = "Use in case of bomb."
 	icon_state = "bombsuit"
 	w_class = ITEMSIZE_HUGE//Too large to fit in a backpack
-	item_flags = STOPPRESSUREDAMAGE|THICKMATERIAL|BLOCK_GAS_SMOKE_EFFECT
+	item_flags = THICKMATERIAL|BLOCK_GAS_SMOKE_EFFECT
 	armor = list(
 		melee = ARMOR_MELEE_VERY_HIGH, 
 		bullet = ARMOR_BALLISTIC_MINOR, 
@@ -66,6 +67,7 @@
 		energy = ARMOR_ENERGY_RESISTANT, 
 		bomb = ARMOR_BOMB_SHIELDED
 	)
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
 	siemens_coefficient = 0.1
 	flags_inv = HIDEMASK|HIDEEARS|HIDEEYES
 	body_parts_covered = HEAD|FACE|EYES
@@ -95,12 +97,13 @@
 		bomb = ARMOR_BOMB_SHIELDED
 	)
 	siemens_coefficient = 0.1
-	item_flags = STOPPRESSUREDAMAGE|THICKMATERIAL
+	item_flags = THICKMATERIAL
 	flags_inv = HIDEJUMPSUIT|HIDETAIL
 	heat_protection = UPPER_TORSO|LOWER_TORSO|LEGS|FEET|ARMS
 	cold_protection = UPPER_TORSO|LOWER_TORSO|LEGS|FEET|ARMS
 	body_parts_covered = UPPER_TORSO|LOWER_TORSO|LEGS|FEET|ARMS
 	max_heat_protection_temperature = SPACE_SUIT_MAX_HEAT_PROTECTION_TEMPERATURE
+	max_pressure_protection = FIRESUIT_MAX_PRESSURE
 	siemens_coefficient = 0
 	var/mob/living/carbon/human/wearer = null
 	var/suit_temp = T20C
diff --git a/code/modules/mob/inventory.dm b/code/modules/mob/inventory.dm
index ae9123dfbce..cc181becf5d 100644
--- a/code/modules/mob/inventory.dm
+++ b/code/modules/mob/inventory.dm
@@ -399,6 +399,12 @@ var/list/slot_equipment_priority = list( \
 		drop_from_inventory(entry)
 		qdel(entry)
 
+/mob/proc/get_covering_equipped_items(var/body_parts)
+	. = list()
+	for(var/entry in get_equipped_items())
+		var/obj/item/I = entry
+		if(I.body_parts_covered & body_parts)
+			. += I
 
 /mob/living/carbon/human/proc/equipOutfit(outfit, visualsOnly = FALSE)
 	var/datum/outfit/O = null
diff --git a/code/modules/mob/living/carbon/carbon_defense.dm b/code/modules/mob/living/carbon/carbon_defense.dm
index 514316f5c89..12e394b3f55 100644
--- a/code/modules/mob/living/carbon/carbon_defense.dm
+++ b/code/modules/mob/living/carbon/carbon_defense.dm
@@ -145,7 +145,7 @@
 	var/damage_mod = 1
 	//presumably, if they are wearing a helmet that stops pressure effects, then it probably covers the throat as well
 	var/obj/item/clothing/head/helmet = get_equipped_item(slot_head)
-	if(istype(helmet) && (helmet.body_parts_covered & HEAD) && (helmet.flags & STOPPRESSUREDAMAGE))
+	if(istype(helmet) && (helmet.body_parts_covered & HEAD) && (helmet.min_pressure_protection == 0))
 		var/datum/component/armor/armor_component = helmet.GetComponent(/datum/component/armor)
 		if(armor_component)
 			damage_mod -= armor_component.get_blocked(BRUTE, damage_flags, W.armor_penetration, W.force*1.5)
diff --git a/code/modules/mob/living/carbon/human/human_defense.dm b/code/modules/mob/living/carbon/human/human_defense.dm
index c830abcc55a..ca99e8fe2d0 100644
--- a/code/modules/mob/living/carbon/human/human_defense.dm
+++ b/code/modules/mob/living/carbon/human/human_defense.dm
@@ -149,7 +149,7 @@ emp_act
 /mob/living/carbon/human/proc/check_head_airtight_coverage()
 	var/list/clothing = list(head, wear_mask, wear_suit)
 	for(var/obj/item/clothing/C in clothing)
-		if((C.body_parts_covered & HEAD) && (C.item_flags & (AIRTIGHT|STOPPRESSUREDAMAGE)))
+		if((C.body_parts_covered & HEAD) && (C.item_flags & (AIRTIGHT)))
 			return TRUE
 	return FALSE
 
diff --git a/code/modules/mob/living/carbon/human/life.dm b/code/modules/mob/living/carbon/human/life.dm
index 0856ba1f678..32fc04e570e 100644
--- a/code/modules/mob/living/carbon/human/life.dm
+++ b/code/modules/mob/living/carbon/human/life.dm
@@ -104,22 +104,21 @@
 	if(!InStasis())
 		..()
 
-// Calculate how vulnerable the human is to under- and overpressure.
-// Returns 0 (equals 0 %) if sealed in an undamaged suit, 1 if unprotected (equals 100%).
+// Calculate how vulnerable the human is to the current pressure.
+// Returns 0 (equals 0 %) if sealed in an undamaged suit that's rated for the pressure, 1 if unprotected (equals 100%).
 // Suitdamage can modifiy this in 10% steps.
-/mob/living/carbon/human/get_pressure_weakness()
-	var/pressure_adjustment_coefficient = 1 // Assume no protection at first.
-
-	if(wear_suit && (wear_suit.item_flags & STOPPRESSUREDAMAGE) && head && (head.item_flags & STOPPRESSUREDAMAGE)) // Complete set of pressure-proof suit worn, assume fully sealed.
-		pressure_adjustment_coefficient = 0
-
-		// Handles breaches in your space suit. 10 suit damage equals a 100% loss of pressure protection.
-		if(istype(wear_suit,/obj/item/clothing/suit/space))
-			var/obj/item/clothing/suit/space/S = wear_suit
-			if(S.can_breach && S.damage)
-				pressure_adjustment_coefficient += S.damage * 0.1
-
-	pressure_adjustment_coefficient = min(1,max(pressure_adjustment_coefficient,0)) // So it isn't less than 0 or larger than 1.
+/mob/living/carbon/human/get_pressure_weakness(pressure)
+	var/pressure_adjustment_coefficient = 0
+	var/list/zones = list(HEAD, UPPER_TORSO, LOWER_TORSO, LEGS, FEET, ARMS, HANDS)
+	for(var/zone in zones)
+		var/list/covers = get_covering_equipped_items(zone)
+		var/zone_exposure = 1
+		for(var/obj/item/clothing/C in covers)
+			zone_exposure = min(zone_exposure, C.get_pressure_weakness(pressure,zone))
+		if(zone_exposure >= 1)
+			return 1
+		pressure_adjustment_coefficient = max(pressure_adjustment_coefficient, zone_exposure)
+	pressure_adjustment_coefficient = Clamp(pressure_adjustment_coefficient, 0, 1) // So it isn't less than 0 or larger than 1.
 
 	return pressure_adjustment_coefficient
 
diff --git a/code/modules/mob/mob.dm b/code/modules/mob/mob.dm
index 307be9f0f0e..ff57939d5e3 100644
--- a/code/modules/mob/mob.dm
+++ b/code/modules/mob/mob.dm
@@ -1089,6 +1089,7 @@
 
 /mob/proc/get_pressure_weakness()
 	return 1
+
 /mob/living/proc/flash_strong_pain()
 	return
 
diff --git a/html/changelogs/geeves-infiltration_slipsuit.yml b/html/changelogs/geeves-infiltration_slipsuit.yml
new file mode 100644
index 00000000000..2addfbe4738
--- /dev/null
+++ b/html/changelogs/geeves-infiltration_slipsuit.yml
@@ -0,0 +1,7 @@
+author: Geeves
+
+delete-after: True
+
+changes:
+  - rscadd: "Added an infiltration kit to the Devices and Tools uplink. It spawns a case containing a mask, a uniform, gloves, and shoes, capable of protecting you from the vacuum of space, as well as two atmospheres of overpressure."
+  - rscadd: "Ported max and min pressure tolerances for items and clothing, meaning that certain gear will now protect better from overpressure, such as atmos voidsuits, firesuits, bomb suits, and to a lesser extent, engineering voidsuits."
\ No newline at end of file
diff --git a/icons/clothing/kit/infiltrator.dmi b/icons/clothing/kit/infiltrator.dmi
new file mode 100644
index 00000000000..56ca57c101f
Binary files /dev/null and b/icons/clothing/kit/infiltrator.dmi differ