STAY SAFE IN THE OUTDOOR RESEARCH ACTIVEICE SUN SLEEVES.The sun can make any hike or outdoor adventure a bummer when you come home with a major sunburn. If you wear The Outdoor Research ActiveIce Sun Sleeves then you'll get the best protection around. The fabric is made to cool you down while the pattern keeps you motivated and ready for anything. FEATURESActive coolingBreathableLightweightWickingQuick dryingRecycled polyesterUPF 50+TECH SPECS91% polyester, 9% spandex, stretch knit