High quality, warm mitts. Great for skiing and other cold weather action. The manufacturer has designed this model for temperatures between -4 ... -15ºC. Strong goatskin and Black Diamond's quality control point towards a long service life! - Fully waterproof - Palm and thumb with goatskin for durability - PrimaLoft Gold insulation at back of hand - Warm and soft fleece liner - Liner with separated fingers - Leashes prevent the mitts from flying away with the wind 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.