XP 3-Layer Fabric 4-layer 320D reinforced panels Velcro adjustable neoprene waistband Twin waist XP 4-layer socks with 320D soles Reinforced seat and knees The Palm Atom Dry Pants offer an XP 3-layer fabric with heavy duty 4-layer reinforcements on the seat and knees along with double taped 4-layer socks to keep your feet dry The perfect dry trousers for both canoeing and kayaking