Use Louis Garneau's Arm Coolers to reflect the sun's penetrating rays. Crafted from Garneau's IceTek polyester/spandex fabric treated with Xylitol, the sugar alcohol used as the cooling sensation in gum, these ultralight sleeves keep you cooler so you can go faster, longer. They also offer UPF 50 sun protection, silicone grippers for a secure fit, and reflective accents for enhanced visibility.