Sun UV Protection: These arm sleeves feature advanced UPF 50+ technology, blocking over 98% of harmful UVA and UVB rays for comprehensive sun protection. Say goodbye to sunburn and the need for sunscreen. Cooling & Comfortable: Crafted from high-quality ice microfiber (90% polyester, 10% spandex), these arm sleeves provide excellent breathability and a comfortable feel during hot summer days. The fabric quickly absorbs sweat and wicks moisture, keeping your arms cool and dry throughout the day. Seamless & Durable: Designed with precision, these compression arm sleeves are made from a reinforced fabric that won't unravel or tear, even after prolonged washing. The fine stitching ensures long-lasting durability. One Size Fits Most: Measuring 15 inches in length, these arm sleeves can stretch up to 47 inches. With an upper arm circumference of 3.7 inches, they stretch to fit up to 8 inches, offering a snug and flexible fit for both men and women, teenagers, and adults. Wide Application: Perfect for various outdoor activities and sports like running, golfing, cycling, fishing, gardening, football, basketball, tennis, and more. The black color also makes them ideal for tattoo cover-ups. Keep your skin protected while staying active!