95% polyester, 5% elastane; Soft anti-pick, anti-pill fabric is extremely breathable & lightweight; Material wicks sweat and dries quickly; Anti-odor technology prevents the growth of odor-causing microbes; UPF 30 protects your skin from the sun's harmful rays;Limited Edition - INVENTORY LIMITED TO CURRENT SUPPLY ONLY!; Self-fabric collar; 4-way stretch construction for better mobility;