Duffel capacity and backpack, carrying comfort. A convertible pack that keeps us organized and mobile. One, large, secure, mesh interior pocket. Easy-access, external pocket; front, organizational panel. Backpack straps and hipbelt suspension stowaway in a snap. Special external wing system helps us slim down our pack for overhead bins. Nylon ripstop. 3.3lbs. 23"x16"x12". Catalog/web only.