GoLite Men's Jam 2 Pack Adjustable hip-belt with two stretch woven pockets for comfort and convenience. Relied on by the experts at NOLS for it's light weight, functionality and durability. Uses Dyneema fabric: Incredibly lightweight, yet incredibly difficult to tear. Stronger than steel and lighter than any other high-performance fiber. Not Just LiteUltra-Lite 1 lb 10 oz./620 g; Volume: 3100 in3 Internal stretch woven hydration sleeve with righty and lefty hydration tube ports for staying hydrated while on the go.