We bet you never thought of wearing long sleeves in the summer while riding. But what if we told you that wearing the right fabric may actually keep you cooler' The Sugoi Arm Coolers were designed to do just that. Constructed from Icefil, Sugoi's Arm Coolers were designed to protect you even in sun-bleached desert territory. Icefil is a reactive knit that utilizes the moisture from your perspiration to cool your skin--much like the way an evaporative cooler works. Flatlocked seams eliminate chafing and discomfort on long rides and the elastic grippers keep them securely on.