Features of the Louis Garneau Women's Pro Carbon Sleeveless Jersey Pro Carbon Sleeveless triathlon top provides you with an excellent range of motion and great warm-weather Performance Sleeveless cut allows you to stay well ventilated when you're working hard Quick-drying, breathable and chlorine-resistant Addition of carbon fiber helps enhance blood circulation and procures antistatic properties Coldblack treatment reflects UV rays for cooling 13in./33 cm zip with inner flap Laser-finished armholes for optimal aerodynamics 2 Rear pockets with flap for hydrodynamics Tri-specific seams placement for optimal comfort on swim, bike and run Mini-stitching: Improves stretchability without restricting movement reflective accents Fabric Details 82% Polyester, 13% Spandex, 5% Carbon