This latest 2XU Compression Flex Arm Sleeve utilizes seamless construction and includes a flexible articulated panel zone for unrestricted elbow movement. It is made of powerful 250D yarns, providing superior graduated compression for muscle stabilization and quick recovery. The sleeve is also designed with PWX POWER compression yarns for enhanced support to the forearm, elbow, and bicep, as well as a graduated fit to promote circulation and improve muscle performance and recovery. The high filament yarns wick away sweat from the skin to keep you dry, while also offering antibacterial and UPF50 sun protection. For best care, machine wash in cold water with like colors and hang to dry in a cool and shady area. Avoid using bleach, fabric softeners, and dryer sheets, and do not iron.