This is a nearly brand new (only used once) Patagonia Middle Fork backpack, with a 30-liter capacity. The Middle Fork was part of Patagonia's "Untethered" kit - a set of lightweight items meant for minimalist outdoors people. It consists of one main compartment, with a cinch top (with an additional buckled strap), two rows of gear loops, a lightweight hip belt, lightweight chest strap, and lightweight shoulder straps. Capacity: 30L Materials: 210-denier 100% recycled nylon ripstop construction with a water repellent finish Weight: 1 lb 1 oz Gender: All I thought this would be a great pack for a variety of adventures (the gear loops and simple main compartment make it a total winner for light alpine / mountain adventures), but then I was given a different pack, so I would like to find a new home for this one so it's not just sitting around collecting dust! *** For those with allergies: I live with a cat. Although I do my best to lint roll and ensure no wee little hairs make it into the packages I send out, I can't promise that a stray won't find it's way in - please be aware if you're highly allergic!