Kikisale 2016 New Design Cycling Water Bladder Bag Backpack+Hydration Packs Hiking Camping 2L (Hot Pink) Imported Constructed by high quality Nylon fabric, lightweight and durable. Easy to use on/off valve on the hydration bladder Storage compartment for keys, phone, snacks etc Adjustable chest and shoulder straps Multifunction Backpack bag Suitable for outdoor activities like cycling, rock-climbing and hiking. Size: 42cm x 25cm / 16.54"x9.84"(L x W)