MCS (muscle containment stamping) is the next generation of compression. The revolutionary fabric support system of the Elite MCS Compression Arm Guards anatomically maps over the arm's key muscle, tendon and fascia groups to further reduce muscle oscillation and damage. This technology provides greater compression power to the arm for increased endurance, without excessive bulk. 1. MCS Mapping provides targeted muscle support to the calves to help reduce muscle strain and soreness 2. Graduated fit helps promote an efficient warm-up pre-exercise and a faster recovery post-exercise 3. Lightweight, low-profile design that can be worn on its own, under socks, or under other apparel 4. Flatlock comfort seams to reduce chafe 5. Polygiene® for lifetime antibacterial and odour protection