Topo wanted one pack that could do it all, whether as an everyday carry or a weekender. Durable, lightweight and comfortable, the Mountain Pack is just as at home on a climbing trip as a work trip. The Topo Designs Mountain Pack is a quality-crafted bag that is built to last. This durable bag features 1000d Cordura outer construction with 18oz waterproof vinyl truck tarp lining, two zippered compartments, internal zipper pocket/organiser/metal key clip, internal sleeve (holds up to a 17" laptop), heavy-duty Large side pockets fit a 32oz Nalgene and the durable daisy chain webbing is ideal for securing extra gear or attaching a bike light. "Made In USA" YKK zippers, large adjustable shoulder strap clasp, metal hardware, and natural leather lash tabs.