Quick-dry polyester tricot mesh main body fabric. Soft nylon / Spandex four-way stretch collar, lower back upper knee and calf panels for a comfortable, performance fit. Reinforced elbow panels. Stretch trimmed cuff with thumb hole and leg stirrups for a Out of Tour Master came a new line of gear, Cortech, which offers all of the performance features and sophisticated innovations and fabric technologies of the Tour Master gear, but is styled for the performance and sport bike segment. Since 2002, it has grown steadily to be a major player in street apparel, gloves and riding gear. Cortech is very proud of where they are today. Just as proud as where they came from. Not bad for two guys who started out at a swapmeet, eh? Lightweight mesh, slim-fit designed undersuit.