Keep the water flowing under harsh conditions with an Insulated Drink Tube Set. Designed to retrofit onto standard hydration systems via the included quick connect or direct tube attachment, this kit features a layer of insulation around the drink tube and an insulated, easy access pouch for the bite valve. The push button, high flow bite valve is protected within a zippered neoprene pouch. A unique zipper pull anchoring design lets you get to the bite valve even with gloves on. Based in trail-happy, Bend, Oregon, TSI is the source for premium OEM hydration bladder reservoirs and accessories.