The OR Alti II GORE-TEX® Mitts are a household name among 8,000-meter climbers and Arctic expeditionists, now featuring even better dexterity and fit. The warmest and most rugged mitt in our collection, the Alti II GORE-TEX® Mitts uses a modular design and bluesign® approved materials to create a layering system for your hands. This ensures lasting warmth, durability, and comfort on multi-day, multi-week trips in extreme conditions. The waterproof and windproof GORE-TEX® outer shell provides durable protection from the elements, and a removable insulated PrimaLoft liner keeps your hands toasty. A glove clip and carabiner loop keep these close at hand by attaching them quickly to your pack or harness. Built for summiting Earth's highest peaks and equally at home on a frozen lake or shoveling the neighbor's driveway, the Alti II GORE-TEX® Mitt is an extreme cold weather specialist.