Wearables are items that can be worn by Daphne. They use six dedicated slots in the left side of the inventory, one for each body part: head, face, torso, hands, legs and feet. This means that you're not allowed to equip more than one item on the same part of the body; the rest can be carried around in the base inventory. Wearable items usually affects stamina and damage resistance, but they can have both positive and negative effects, making them suitable in some circumstances, but not in others.
