Well-insulated and equipped with proper reinforcements, the Glissade Gloves are a handy and lighter alternative to mittens for winter cold. - Waterproof BDry inserts - Durable Pertex Shield outer material - Warm fleece lining (100g/m²) - Thinsulate insulation on both the palm and back of the hand - Palm and thumb reinforcements made of high-quality goat leather, sewn in place with Kevlar thread Black Diamond gloves come with a two-year warranty against manufacturing and material defects. Black Diamond took its name from the difficulty rating of skiing and mountain biking trails: the symbol for the most challenging level is a double black diamond.