Don't let the sun keep you from having some serious fun outside. Using chemical-free CoolcoreA(R) technology, these UVShield Cool Sleeves breathe and wick naturally to regulate evaporative cooling. Stretch-fit makes them perfect for rigorous activity-mountain biking, running, kayaking, even working in the garden. Easy wash-and-wear fabrics now come in a variety of colors. Sold as a pair.UPF 50+ sun ratingCoolcoreA(R) chemical-free cooling fabricMoisture-wicking, quick-drying, breathableStretch-fit for active useEasy wash and wearWeight: 2.2 ounces/63.3 grams