Garneau's Course M-2 Triathlon Jersey is designed for maximum aerodynamics. CB M-2 fabric at the sleeves is proven in the wind-tunnel to improve aerodynamics on the bike as well as providing protection from the sun. The full length zip allows maximum ventilation on the run while allowing athletes to use the jersey in T1 for non-wetsuit events. The one-piece CB Speedtech body ensures a minimal number of seams, eliminating friction points. Both fabrics are treated with Coldblack that reflects heat to keep the athlete cool, and offer UPF/SPF 50 protection from the sun.