The Platypus Drink Tube Insulator helps to keep your drink from freezing in winter and can help keep liquids cool in hot weather.
This revamped design means that the bite valve is completely covered (to keep it clean and protect it from freezing quickly), a reverse coil polyurethane-coated zip (to prevent ice/snow build up), a large zip pull (easy to open with one hand - even with gloves on), and a hook and loop closure shoulder strap attachment (so you can fix it to a rucksack). It works with all Platypus® drink tubes and bite valves.
It includes the bite valve and tube cover, but not the bite valve or tube themselves.
Length: 24" (66cm).
Weight: c 40g.