Windproof excellent performance, resistance to the invasion of winter wind. Waterproof: high waterproof breathable fabric, waterproof, breathable, washable and strong. Warm: waterproof fabric with coupled Velcro, so well- sealed, windproof able to play the role of warm leg Anti- sludge, snow: auxiliary functions as outdoor sports supplies, especially where there is possible for sludge, wet snow legs and shoes most suitable occasion.