"2XU® Elite MCS Compression Arm Guards: The 2XU® Elite MCS Compression Arm Guards are unisex compression sleeves designed for athletes who need targeted arm support during dynamic, intense, or repetitive upper-body activity. Whether you're playing basketball, tennis, weight lifting, rowing, or training outdoors, these arm guards deliver graduated compression that works from your wrist toward your upper arm to encourage blood circulation during activity and support recovery afterward. The PWX FLEX 70D fabric forms the foundation, mapping compression directly over key arm muscles, tendons, and fascia groups so support stays precisely where you need it.Built from 72% nylon and 28% Lycra®, the sleeve features high filament yarns that wick moisture away from your skin to keep your arms dry during extended efforts. Anatomical left and right arm guards ensure the MCS mapping aligns with each arm's structure, so the targeted support stays in position rather than shifting during movement. Flocked openings at each end sit comfortably against your skin without causing irritation, even after long workouts. UPF 50+ sun protection and antibacterial treatment make these practical for outdoor training and repeated use, while the moisture-wicking construction keeps you feeling fresh through your session.Why Our Fit Experts Love It""I wore these during a heavy upper-body training session and was impressed by how well the MCS mapping stayed aligned through every movement. The moisture-wicking fabric kept my arms dry, and the flocked openings never caused any irritation even after an extended workout."" - Michael, Road Runner Sports Fit Expert, Seattle WAWho It's Best ForThe 2XU® Elite MCS Compression Arm Guards are best for athletes who engage in sports or training with dynamic or repetitive arm movements - including basketball, baseball, tennis, golf, weight lifting, and rowing. They suit anyone who wants targeted compression support during activity and faster recovery afterward, as well as those training outdoors who need UPF 50+ sun protection. VIP Family members can take the Elite MCS Compression Arm Guards for a 90-Day test drive with our Perfect Fit Guarantee."