The next generation in 2XU Compression technology - MCS (Muscle Containment Stamping) for targeted compression. MCS is a revolutionary fabric support system traced over key muscle, tendon and fascia groups to focus greater compression power to wrap precise areas and reduce muscle oscillation and damage. Engineered with powerful PWX FLEX (70D). The Elite MCS Compression Calf Guards offer unparalleled power and protection against muscle trauma during intense activity. Graduated compression also offers impressive recovery benefits post exercise.??