420D Nylon Ripstop Imported One size fits most Fully adjustable side, shoulder, and chest straps Balanced load distribution Moisture-wicking spacer mesh back panel for air flow 12 total external pockets and made from abrasion resistant 420D Nylon Ripstop The MSR Rover Vest was designed to deliver versatility and maximum storage, all while allowing breathability, maintaining durability, and minimizing bulk.