duffel baaaaaaaaaaags

code/game/objects/items/storage/backpack.dm

@@ -47,6 +47,7 @@
 	armor = list("melee" = 0, "bullet" = 0, "laser" = 0, "energy" = 0, "bomb" = 0, "bio" = 0, "rad" = 0, "fire" = 60, "acid" = 50)
 	component_type = /datum/component/storage/concrete/bluespace/bag_of_holding
 	rad_flags = RAD_PROTECT_CONTENTS | RAD_NO_CONTAMINATE
+	var/max_weight_class = 35
 
 /obj/item/storage/backpack/holding/satchel
 	name = "satchel of holding"
@@ -54,14 +55,21 @@
 	icon_state = "holdingsat"
 	item_state = "holdingsat"
 	species_exception = list(/datum/species/angel)
-	rad_flags = RAD_PROTECT_CONTENTS | RAD_NO_CONTAMINATE
+
+/obj/item/storage/backpack/holding/duffel
+	name = "duffel bag of holding"
+	desc = "A duffel bag that opens into a localized pocket of Blue Space."
+	icon_state = "holdingduffel"
+	item_state = "holdingduffel"
+	max_weight_class = 50 //gotten from ratio of duffelbag max to bag max * 35 (BoH storage) ie (30/21)*35 = 50
+	slowdown = 1
 
 /obj/item/storage/backpack/holding/ComponentInitialize()
 	. = ..()
 	var/datum/component/storage/STR = GetComponent(/datum/component/storage)
 	STR.allow_big_nesting = TRUE
 	STR.max_w_class = WEIGHT_CLASS_BULKY
-	STR.max_combined_w_class = 35
+	STR.max_combined_w_class = max_weight_class
 
 /obj/item/storage/backpack/holding/suicide_act(mob/living/user)
 	user.visible_message("<span class='suicide'>[user] is jumping into [src]! It looks like [user.p_theyre()] trying to commit suicide.</span>")

code/modules/research/designs/bluespace_designs.dm

@@ -35,6 +35,17 @@
 	dangerous_construction = TRUE
 	departmental_flags = DEPARTMENTAL_FLAG_SCIENCE
 
+/datum/design/duffelbag_holding
+	name = "Duffel Bag of Holding"
+	desc = "A duffel bag that opens into a localized pocket of bluespace."
+	id = "duffelbag_holding"
+	build_type = PROTOLATHE
+	materials = list(/datum/material/gold = 3000, /datum/material/diamond = 1500, /datum/material/uranium = 250, /datum/material/bluespace = 2000)
+	build_path = /obj/item/storage/backpack/holding/duffel
+	category = list("Bluespace Designs")
+	dangerous_construction = TRUE
+	departmental_flags = DEPARTMENTAL_FLAG_SCIENCE
+
 /datum/design/biobag_holding
 	name = "Bio Bag of Holding"
 	desc = "A chemical holding thingy. Mostly used for xenobiology."

code/modules/research/techweb/all_nodes.dm

@@ -278,7 +278,7 @@
 	display_name = "Bluespace Pockets"
 	description = "Studies into the mysterious alternate dimension known as bluespace and how to place items in the threads of reality."
 	prereq_ids = list("adv_power", "adv_bluespace", "adv_biotech", "adv_plasma")
-	design_ids = list( "bluespacebodybag","bag_holding", "bluespace_pod", "borg_upgrade_trashofholding", "blutrash", "satchel_holding", "bsblood_bag")
+	design_ids = list( "bluespacebodybag","bag_holding", "bluespace_pod", "borg_upgrade_trashofholding", "blutrash", "satchel_holding", "bsblood_bag", "duffelbag_holding")
 	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = 5500)
 
 /datum/techweb_node/bluespace_portal