https://www.rei.com/product/111301/osprey-sirrus-24-pack-womens Osprey Sirrus 24 Pack - Women's Gear Capacity (L) 24 liters Gear Capacity (cu. in.) 1,465 cubic inches Weight 2 lbs. 9 oz. Adjustable Torso Length Yes Fits Torso Length (in.) 15 - 18 inches Fits Waist/Hips 24 - 44 inches Material(s) Nylon Frame Material LightWire alloy frame Number of Stays 1 Suspended Mesh Back Panel Yes Pack Access Panel Number of Exterior Pockets 5 Hipbelt Yes Hipbelt Pockets Yes Raincover Included Yes Reservoir Compatible Yes Dimensions 19 x 12 x 12 inches