All Around Fun The FL3X Revolve is best ski boot for anyone looking to improve their stunt game, whether that be park, moguls or aerials. Featuring a Fully Heat shapeable Revolve Shell, 90 Flex Tongue, and an easy entry Intuition Tongue Liner. Size 24.5, 25.5, 26.5, 27.5, 28.5, 29.5, 30.5, 31.5 Last Width 99mm Catalog Ski Flex 4/10 Shell Material TPU Cuff Material TPU Strap Velcro Outsole Alpine Liner Intuition Tongue Weight 2000g K2 is the original American Ski and Snowboard Brand, founded in 1962 in Washington State. The brand continued to pioneer by expanding into snowboards in 1987 and was the first brand to specifically engineer products for women starting in 1999; our Women’s Alliance. K2 is the original American Ski and Snowboard Brand, founded in 1962 in Washington State. The brand continued to pioneer by expanding into snowboards in 1987 and was the first brand to specifically engineer products for women starting in 1999; our Women’s Alliance.