On the equipment page there is a back slot that can carry up to a bundle of 4 things such as 4 leather scraps, 4 cloth scraps, 4 plastic scraps, etc. The only drawback is that it can only be 4 of the same thing, not 4 different things. Is this intentional? Seems kinda silly to me to force you to carry the same things as long as it doesn't go over encumbrance.