The 2XU Reflect Compression Calf Guards provide compression support to the calf to help reduce muscle oscillation for longer stronger performance. With high reflectivity to keep you visible from all angles and safe in low light conditions. COMPRESSION BENEFITS Reduced muscle fatigue and soreness Reduced muscle damage and risk of overuse injuries Improved performance Improved muscle alignment Increased agility FABRIC BENEFITS Lightweight yet powerful PWX fabrics Durable yarns that outlasts the competition Multi-directional stretch Flexible & breathable Moisture wicking yarns to help keep you dry UPF50+ sun protection Antibacterial