ZIPPERS YKK w/ DWR coating PATENT Patent: #7,878,141 PACK VOLUME 2,563 cubic inches / 42 liters (with system) WEIGHT 7.1 lb / 3,215 g (full system with full cylinder) 5.9 lb / 2,658 g (full system without cylinder) 4.4 lb / 1,998 g (pack only) MATERIAL 210 denier mini ripstop nylon w/ PU coating (main) 420 denier oxford nylon w/ PU coating (high wear areas) 200 denier polyester (lining) TORSO SIZE 18” - 21” / 45.7 - 53.3 cm COLOR Black/Red