Features: Made from premium nylon fabric materials with bar tack treatment,the outdoor backpack is not only water repellent,tear-proof,abrasion resistance. The outdoor backpack has a light weight but it has 19*13in size for holding your personal belongings as much as possible when you are traveling,going hiking,climbing,cycling and so on. Ergonomic Back and Shoulder Strap:Designed from the combination of honeycomb mesh and sponge,which is in accordance with ergonomic suspension system. The outdoor backpack is breathable,air-permeable,load dispersion,heat insulation,shockproof,anti-slipping and moisture-proof. Multiple Compartments:Owning multiple compartments and pockets,the outdoor backpack greatly helps you storage your objects(such as mobile devices,life essentials,etc.) orderly to prevent mixing up. 3 Colors for Your Needs:Coming with 3 colors,the outdoor backpack allows you to choose the fittest one for yourself as well as for your families or your friends. Specifications: Material: Nylon + Polyester Size:50*33 cm / 19*13 in Package Included: 1 x Outdoor Backpack