This is the REI Trail 25 Pack. It's in great shape, with just a few marks and small areas of discoloration on the interior. Suitable for hiking or any outdoor activity where you'd need a good backpack. - Best Use Hiking - Bag Style Backpack - Frame Type Internal Frame - Gear Capacity (L) 25 liters - Gear Capacity (cu. in.) 1,525 cubic inches - Weight 1 lb. 9 oz. - Fits Torso Length (in.) 17 - 19 inches - Fits Waist/Hips 28 - 44 inches - Material(s) Nylon - Frame Material HDPE framesheet - Pack Access Panel - Number of Exterior Pockets 5 + main compartment - Raincover Included Yes - Reservoir Compatible Yes - Dimensions 20 x 13 x 8.875 inches Bag Features - Included raincover stows in its own zip pocket - U-shaped panel with 2 zipper sliders offers quick access to gear and total access when fully open - Padded, mesh-covered straps and back are cool and comfortable - Internal HDPE framesheet adds structure and helps shield your back from protruding gear - Side mesh pocket with elastic closure offers quick access - Outer pocket can hold a phone or sunglasses - Top has a zip pocket on the underside for your keys and valuables - Special fasteners on the back hold pole tips down low and pole shafts up high - Pack has an inner sleeve for a hydration reservoir (reservoir sold separately) - Waist strap can be removed; you can also add an REI Trail 2 Waistpack (sold separately) for more storage