Sun UV Protection: These arm sleeves feature advanced UPF 50+ technology, blocking over 98% of harmful UVA and UVB rays for comprehensive sun protection. Helps reduce exposure to the sun’s rays. Cooling & Comfortable: Made from high-quality microfiber fabric (90% polyester, 10% spandex), these arm sleeves offer breathable performance and a comfortable fit during warm weather. The material absorbs sweat and wicks away moisture to help keep arms cool and dry. Seamless & Durable: Designed with reinforced fabric that resists fraying or tearing, even after repeated washing. Precision ing enhances durability for long-term use. One Size Fits Most: Measuring 15 inches in length and stretching up to 47 inches, with a cuff circumference of 3.7 inches that expands to fit up to 8 inches. Provides a secure, flexible fit suitable for most adults, including men, women, and teenagers. Wide Application: Ideal for outdoor activities such as running, golf, cycling, fishing, gardening, football, basketball, tennis, and other sports. The black style can also be used to cover tattoos. Helps protect skin while staying active.