<!--ProdInc[180020103]/Mall:[reioutlet_US]-->Made with 200-denier recycled ripstop nylon; a C0 durable water repellent (DWR) finish helps moisture bead up on the surface; C0 DWR is a water-based, PFC-free formulation Included 2.5-liter reservoir gives you hours of hydration on the trail; you can also remove the reservoir for extra storage capacity to pack around town Air Support back panel is body mapped to ventilate areas of the body that generate the most heat, while keeping load close to your body for increased stability Exterior zippered pocket secures your small valuables 2 side stretch pockets expand for extra water bottles or essentials Trekking pole attachments make it easy to secure your poles when you dont need them Side cargo compression straps secure the load Includes a removable waistbelt