MADE IN THE USA The 2XU Compression Calf Guards may appear simple but they 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 (small tears) and shin splints. The convenience of the calf guards allow the athlete to use their preferred sock and can also be worn under a wetsuit making transition times faster during a triathlon. ACTIVE USE Running Endurance Activities Workout Sessions Competitions and Racing General Sporting Activities FEATURES & BENEFITS Muscle containment for reduced vibrations & oscillation, less muscle fatigue & damage 70 Denier Invista LYCRAA(R) for Certified Gradient Compression Medical circular 360 degree knit construction creates a consistent yet powerful pressure Graduated Compression Fit for circulatory benefits & faster recovery Increased Oxygen to Muscles Minimize Shin Splints Extreme Moisture Management Antibacterial & SPF 50 Sun protection Breathable & Lightweight