The 2XU Compression Calf Guards are strategically designed to be exceptionally effective for the containment of the calf muscle when training and competing. Repeated muscle vibration is directly related to causing fatigue, muscle damage and shin splints. A versatile item that allows athletes to use their preferred sock and can also be worn under a wetsuit making transition times faster during triathlon. Graduated compression to promote increased circulation for recovery. Highest power denier targeted support to calf + shins. Reduced fatigue in lower legs through less muscle oscillation. Reduced muscle soreness. Greater power output.