Come and see our amazing products. The waterproof riding backpacky is made of ultralight nylon. With djustable shoulder strap, chest strap and waist strap to fit your size. Ergonomic design on the back for maximum breathability and comfort. Reflective strips for safe using at night. there is extra mess pouch at the bottom, to use for extra storage. The backpack structure fit to hold the 2L bladder(not included). Great to use for cycling, climbing, camping, running, and hiking, etc.Customized logo available. QTY for 5000 and over by ocean. Pls confirm with us about the packing info, stock color and exact production time before placing your order.