diff --git a/modular_sand/code/modules/clothing/underwear/_underwear.dm b/modular_sand/code/modules/clothing/underwear/_underwear.dm
index 0d6b30434b..76244b24fe 100644
--- a/modular_sand/code/modules/clothing/underwear/_underwear.dm
+++ b/modular_sand/code/modules/clothing/underwear/_underwear.dm
@@ -11,6 +11,7 @@
 	slot_flags = ITEM_SLOT_UNDERWEAR
 	armor = list("melee" = 0, "bullet" = 0, "laser" = 0,"energy" = 0, "bomb" = 0, "bio" = 0, "rad" = 0, "fire" = 0, "acid" = 0)
 	mutantrace_variation = STYLE_DIGITIGRADE
+	w_class = WEIGHT_CLASS_SMALL
 	var/under_type = /obj/item/clothing/underwear //i don't know what i'm gonna use this for
 	var/fitted = FEMALE_UNIFORM_TOP