Hestra's Army Leather Expedition Mitten is its warmest mitt, made for serious time at altitude. This burly mitt not only has fiberfill insulation but a removable three finger Primaloft liner for ultimate finger thawing warmth. 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. For extreme cold or conditions, this mitt ensures five finger comfort.