Platypus Drink Tube Insulator

We have all had those days on the mountain when the temperatures are so frigid that everything liquid tends to freeze. The Drink Tube Insulator is the perfect accessory to have on any hydration reservoir system when hydration matters most. The new design offers a completely covered bite valve (to keep it clean and protect it from freezing quickly), a reverse coil polyurethane-coated zipper (to prevent ice/snow build up), a large zipper pull (to easily open with one hand—even with gloves on), and a hook and loop closure shoulder strap attachment (to secure to a pack). Works with all Platypus® drink tubes and bite valves.