Keep your arms protected from harmful sun rays and airborne allergens with the Castelli UPF 50 Plus Light Arm Skins. Made from lightweight, polyester-based Solare fabric, these arm skins provide needed coverage without causing you to overheat when the intensity ticks up. At the top, double-sided silicone elastic grippers hold the hems comfortably in place to minimize shifting for a ride free from distractions and sunburn.