85% Nylon, 15% Spandex 50+ UV Protection: May assist with protection from harmful UV rays with our sun sleeves for men and women Each UV protected arm sleeve is made with a premium fabric blend to cool your skin on hot and sunny days Could aid in pain relief for arthritis, tendonitis, lymphedema or other medical concerns May help reduce swelling and inflammation from sports such as tennis, baseball, golf and basketball Athletic Sport Compression: Arm Sleeves act as arm warmers in cold weather Could offer joint support and reduced swelling for tennis elbow or when active in sports such as: volleyball, football, baseball or bowling Premium Quality: Unlike other brands, our arm sleeves for men and women offer true compression Each lightweight arm compression sleeve stays put, could aid in boosting circulation, wicks away moisture, and protects against UV rays Durable Elbow Compression Sleeve: Arm sleeves could help support tired, sore, or injured muscles Ideal for use as an arm brace for any activity Purchase a size down for added compression