Gregory Gregory Insulated Quick Disconnect Kit Backpack | Travel Backpack from Gregory Mountain Products | Insulated Hose to aid in keeping water cool, as well as keeping water from freezing at colder temperatures. Includes inline quick disconnect.37.5" / 95.25 cm length of 0.25" / 0.635 cm inner diameter insulated hoseQuick disconnect couplingInstructions: Cut hose and insert coupling between the reservoir and Bite valve allowing removal without having to un-thread the hose from the shoulder harness.• Weight: 0.14 lbs.Body Dimensions: 9.3" x 4.0" x 1.4"