The AllTrail 25L Backpack features durable 420D dobby and 330D ripstop polyester construction. It includes a hipbelt, sternum strap, breathable adjustable shoulder straps, and an adjustable waist belt. The pack is hydration compatible but does not include a reservoir. Access is through the top, with multiple pockets including one zipper side pocket, one front drop-in, one zippered lid pocket, and one hipbelt pocket. Gear loops, ice axe carry, trekking pole carry, and adjustable side compression straps are included. Dimensions are 9.4 x 10.2 x 23.6 inches. Claimed weight is 1 lb 15 oz.