High quality water and tear resistant Nylon material. Durable abrasion resistant metal zipper. Dual colors customized fasteners. Comfortable wide breathable mesh shoulder straps, comfortable to carry. Adjustable shoulder strap buckle. Light weight (8.6oz), compact (14.6 * 9.5 * 4.3in) and Roomy (10L). Reinforced more than 14 places with Bartack Process.