Technical underwear developed for winter use, in cold climates & for long rides. 50% Nylon with stretch material made by micro fleece & waterproof, windproof, breathable membrane & 50% Nylon with stretch material coupled by soft micro fleece represent the mix of materials. In order to maximize comfort, there are no stitching over the neck area while coulisse & silicon over the waistline are in place to maintain ideal fitting of trousers. Top of the range kit for Comforce underwear. Materials Supplex Soft Cell stretch material for great fitting Comfort Windproof & breathable membrane Knitted cuffs