waterproof gloves with separate inner glove . the oyuki sugi gtx mittens come with warm hitaloftâ„¢ insulation and a gore-tex® membrane on the inside, while offering a high-performance waterproof material on the outside.the pu palm ensures durability and the separate inner glove comes with touchscreen panels.the combination of these materials and features makes the sugi gtx gloves your companion for every day and every condition of the season.