Mountain Hardwear South Col 70 OutDry Backpack Nylon The one-pack solution for mountaineering expeditions on the world's highest peaks. OutDry&reg; construction keeps contents dry in any conditions Capacity: S/M: 70L; M/L: 75L Torso Range: S/M: 16-19in; M/L: 18.5-22in Materials: Body: 400D HD Nylon; Accent: HardWear X-Ply Ripstop; Bottom: 840D HT Ballistic Nylon Weight: S/M: 3lb 11oz; M/L: 3lb 13oz