2XU MCS Elite Compression Arm Guard 100% Other Fibers Imported Benefits: compression support to the forearm, elbow and biceps | muscle containment for reduced vibrations & oscillation, less muscle fatigue & damage | graduated compression fit for circulatory benefits & faster recovery Features: muscle containment stamping (MCS) is targeted to the forearm, elbow and bicep for ultimate muscle protection | moisture wicking yarns to keep you dry | antibacterial and UPF 50+ sun protection Fabrics: PWX flex 70 denier invista Lycra for Certified Gradient compression | medical circular 360 degree knit construction creates a consistent yet powerful pressure | high filament yarns for dryness Active + recovery: running, endurance activities, workout sessions, competitions and racing | post workout recovery and rehab from injury Warranty + care: 12-month Warranty with proof of purchase from an authorized 2XU seller. Machine wash in cold water and hang to dry