Description of Black Diamond RPM 26L Pack Designed for constant movement on big days, the lightweight RPM features a highly compressible, ergonomic design so it moves with you, whether you’re climbing the Beckey-Chouinard in the Bugs, third-class scrambling along the Teton’s Cathedral Traverse, or trail running/peak bagging in RMNP’s high country. It’s constructed from water-shedding 210d SilNylon ripstop fabric with perforated, multi-density foam in the shoulder straps and a back panel for breathable comfort. A removable webbing waistbelt, two ice axe loops, cold-weather shockcord and mesh side pockets provide convenient carrying. A no-nonsense, daily-use pack with top-zip access that will survive years of abuse in the mountains or on the subway. Features: Weight: 570 g (1 lb 4 oz) Stripped weight: 500 g (1 lb 2 oz) Volume: 26 L (1587 cu in) Torso sizes: S/M 41–48 cm (16–19 in) M/L 47–55 cm (18.5–21.5 in)