The Tenzing 1500 Bag boasts a burr-proof, 300-denier ripstop Honeycomb Poly Oxford outer shell. Inside the 1,500-cubic-inch main compartment you'll find ample storage space, including three open-top grab pockets, two zippered pockets and a fold-down gear organizer. Plus, it features three exterior zippered pockets, two expandable side pockets with adjustable compression straps and trademarked Daisy Chain customization for attaching additional gear.