100% recycled polyester pack fabric is durable, lightweight, and sustainable | Waist strap can be used around the waist or lengthened for an over the shoulder carry | Spacermesh™ padded back panel for comfort and ventilation | Discreet stash pocket on the back sized for smartphone | Internal organization pockets include open stash pocket, zippered security pocket | Zippered external front pocket with key clip stows small essentials