Ice belongs on the mountain, not in your hydration system. That’s why Hydrapak created the ground-breaking ArcticFusion Tube Kit. This innovative solution is a premium insulated tube system that helps keep water flowing in freezing temps. It has the Phaser™ bite valve on one end and the Plug-N-Play™ connector on the other, and it has 50% more foam insulation than competing brands. COLD WEATHER TUBEWith a wide working temperature from frozen to 60??C, the flexible drink tube insulates against cold weather conditions. ANGLED VALVEThe angled Phaser™ valve provides a steady flow. MOUNTAIN FRIENDLYDesigned for skiing and snowboarding, suitable for high-altitude hiking. DUST COVERDrinking cap protects the valve from mud and grime. PLUG-N-PLAY CONNECT SYSTEMEasily disconnect the drink tube (an auto shut-off valve prevents leaking) and remove the reservoir from your pack for convenient refilling. INSULATED VALVE AND BASE COVERHelps protect water from freezing in extreme temperatures. BPA AND PVC FREEBetter for you and the environment. Weight 99 g Dimensions 6 mm x 91.44 cm (internal tube diameter, does not fit standard tube magnet) Material TPU, PP/POM, Silicone