Northwave COLD RIDE underwear is designed to keep your body dry and protected from the cold and wind. The Prolen hollow fibre polypropylene used in the Tech Underwear offers outstanding breathability and is super soft and light as a feather. The front with breathable, windproof NW4Pro membrane and the double construction of the long sleeve - outside with wide meshes for optimum moisture release and inside compact, for protection against cold air - provides the necessary performance. The high collar offers additional protection against draughts and increases comfort. The Tech Underwear Longsleeve is best worn under one or more layers.