CAMTOA 40LCamping Backpack Travel Bag Hiking Daypack Climbing Camping Outdoor Sports Travel Backpack Bag Backpack for Travel Hiking Climbing Running Camping Cycling Outdoor Sports Size: 35cm(Length) x 58cm(Height) x 25cm (Thickness) Material: Nylon Fabric, Waterproof. Side mesh pouches keep energy bars or sunscreen handy with two side mesh pouches Multipurpose: outdoor travel, hiking, trekking, camping. Increase air cushion gasket back and waist,breathable mesh and inner filling soft interlayer sponge,buffer shock absorption,reduce the pressure of body contact area,further enhance with comfort