Fixes hair sticking through hats.

code/modules/clothing/head/collectable.dm

@@ -4,6 +4,7 @@
 /obj/item/clothing/head/collectable
 	name = "collectable hat"
 	desc = "A rare collectable hat."
+	dynamic_hair_suffix = "+detective"
 
 /obj/item/clothing/head/collectable/petehat
 	name = "ultra rare Pete's hat!"
@@ -14,6 +15,7 @@
 	name = "collectable slime cap!"
 	desc = "It just latches right in place!"
 	icon_state = "slime"
+	dynamic_hair_suffix = ""
 
 /obj/item/clothing/head/collectable/xenom
 	name = "collectable xenomorph helmet!"
@@ -25,6 +27,7 @@
 	desc = "A rare chef's hat meant for hat collectors!"
 	icon_state = "chef"
 	item_state = "chef"
+	dynamic_hair_suffix = ""
 
 	dog_fashion = /datum/dog_fashion/head/chef
 
@@ -53,6 +56,7 @@
 	name = "collectable police officer's hat"
 	desc = "A collectable police officer's Hat. This hat emphasizes that you are THE LAW."
 	icon_state = "policehelm"
+	dynamic_hair_suffix = ""
 
 	dog_fashion = /datum/dog_fashion/head/warden
 
@@ -95,6 +99,7 @@
 	desc = "The fur feels... a bit too realistic."
 	icon_state = "kitty"
 	item_state = "kitty"
+	dynamic_hair_suffix = ""
 
 	dog_fashion = /datum/dog_fashion/head/kitty
 
@@ -103,6 +108,7 @@
 	desc = "Not as lucky as the feet!"
 	icon_state = "bunny"
 	item_state = "bunny"
+	dynamic_hair_suffix = ""
 
 	dog_fashion = /datum/dog_fashion/head/rabbit
 
@@ -125,6 +131,7 @@
 	name = "collectable HoS hat"
 	desc = "Now you too can beat prisoners, set silly sentences, and arrest for no reason!"
 	icon_state = "hoscap"
+	dynamic_hair_suffix = ""
 
 /obj/item/clothing/head/collectable/HoP
 	name = "collectable HoP hat"
@@ -138,6 +145,7 @@
 	icon_state = "thunderdome"
 	item_state = "thunderdome"
 	resistance_flags = 0
+	flags_inv = HIDEHAIR
 
 /obj/item/clothing/head/collectable/swat
 	name = "collectable SWAT helmet"
@@ -145,3 +153,4 @@
 	icon_state = "swat"
 	item_state = "swat"
 	resistance_flags = 0
+	flags_inv = HIDEHAIR