Marmot Kompressor Plus 20 backpack. Used a handful of times. *Minimalist webbing waist belt and side bottle pockets keep you light and fresh on speedy climbs *Durable double-ripstop nylon, comfortable air-mesh shoulder straps and a removable foam back panel keep you comfortable and equipped for rugged terrain *Pack stuffs into its own lid for easy transport and storage Tool / trekking pole attachment; daisy chains; sternum strap *Hydration port and clip (reservoir not included)