Upgrade your hydration system with the Osprey Insulated Hose and Bite Valve Cover for ice-free ease this winter. Bag and tube hydration systems have one truly weak link in below freezing conditions: the tube rides outside your insulated layers, on your pack strap, with nothing between your water and the bitter air out but a tender little plastic hose. And that’s not going to hold up for long, so you’re either bending the tube to break up the ice, chomping down on the bite valve to crush it, or lugging around 2.5 liters of water you can’t access because “frozen.” Enter Osprey’s solution: an insulated hose with an insulated bite valve cover. Osprey calls this a four season solution, it will keep water cooler in summer heat, but where it really shines is in winter. Whether you’re packing water for a day of lift serviced skiing so you can stay out longer without a lodge break, or hucking into the backcountry with a pack with an avalanche pocket, this nifty little add-on will help keep that tube flexible, unfrozen, and the liquid running when the snow is falling.