Wear Canari's UPF Arm Protection and you'll not only protect your arms from the sun, you'll remain cooler than going sleeveless too. These ultra-light sleeves give you a UPF rating of 50 and are made from Canari's dri-LUX fabric that wicks, breathes and naturally resists allergens and odors. Plus, the silicone grippers keep them in place, the folded cuffs are a nice detail and they pack small so you can always bring them along.