Backpack ,travel backpack ,leisure backpack. mady be neoprene,waterpoof and shockproof ,lightweight. Backpack ,travel backpack ,leisure backpack. mady be neoprene,waterpoof and shockproof ,lightweight.Material : 2.0mm neoprene with Polyester fabric on both sidesPacking : 1pc/polybagCustomized color ,thick ,logo are welcome. Backpack