The McDavid(R) Fitness Arm Sleeves are engineered for athletes that are pushing their limits. Whether you are into extreme fitness or obstacle course racing the dual layered compression offers the protection and performance you need. Get rugged durability so you can go hard. Performance Design Engineered for extreme fitness and obstacle course athletes Dual layer for extra protection during intense activities Extra compression during intense strength training Compression tech warms and stabilizes muscles 50+UV Skin protection