SUGOI ARM COOLERPROTECTING YOUR ARMS FROM HARMFUL UV RAYSThe Sugoi Arm Cooler blocks out the sun's harmful rays and helps to keep you cooler on sizzling days. The Icefil material reacts to the skin's moisture and cools your skin temperature. A UPF rating of 50+ gives you superior sun protection, and elastic grippers keep these sleeves in place. Features Icefil material is moisture reactive and cools your skin temperature UPF rating 50+ for top level sun protection Comfortable gripper elastic for a secure fit Sizing Size Small Medium Large Extra Large Bicep (cm)29-3333-3737-4141- 45 | Sugoi | Uv Cycling Arm Coolers Men's | Size Extra Small In Black