Hestra's Army Leather Expedition Mitten is its warmest mitt, made for serious excursions at altitude. This burly mitt comes with two different liners, providing just-right warmth no matter how we're adventuring. The Flextron softshell provides waterproof, windproof protection, while the grippy and gorgeous impregnated army goat leather delivers inimitable leather quality and performance. Kangaroo leather reinforcement covers the palm for even more durability.