Simple, intelligently designed, and made from 100% recycled polyester pack fabric, the larger Mantis waistpack is perfect on quick hikes or as a secondary pack for your big adventures. The zippered front pocket has a clip for keys, and the internal pockets include an easy access stash pocket and zippered security pocket. A smart, discreet pocket on the back panel stashes a smartphone. Need a different size? Try the smaller Mantis 1 Waist Pack .