Wind tunnel proven to maximize aerodynamics on the bike, the Louis Garneau Course M-2 Triathlon Jersey combines innovative fabrics with state-of-the-art technology for pro-level racing and competitive performance. coldblack SpeedTech and coldblack M-2 fabrics with UPF 50 deliver powerful muscle compression, moisture-wicking, heat management and increased speed. One-piece body ensures a minimal number of seams to eliminate friction points. Full zip allows maximum ventilation on the run and slips on easily in the swim-to-bike transition. Next-to-skin fit, comfort-designed neck and lazer-finished sleeve hems enhance aerodynamics even further.