The JanSport Odyssey was designed to provide the ultimate in storage and function for a variety of outdoor and urban adventures. It’s made of a durable blend of 420 polyester dobby and 840D junior ballistic nylon. Most of its 39L storage space is in two of its main compartments, which secure with rugged #10 zippers, and the rear compartment features a padded sleeve for a 3L hydration system or 15” laptop. The pack’s exterior has numerous pockets, like a quick-access loft pocket and dual mesh water bottle pockets. The exterior also comes with a daisy chain and loop for an ice axe. The ergonomic s-curve suspension system is padded, secures with a sternum strap and the waist can be fastened with a tuck-away hip belt.