Great for those crisp morning rides and cool, in between conditions, the Louis Garneau Wind Pro Arm Warmers provide customizable warmth and protection from the sun's harmful rays. These arm warmers offer compressive support and stabilization with their Lazer Rev cuffs. Light Wind Pro fabric blocks cool outside air from chilling your arms, while breathing to disperse built up perspiration. Its UPF 50 rating ensures plenty of protection from UV radiation on bright summer days. Best of all, you can quickly and easily stash 'em in your back jersey pocket once the day heats up.