Under Armour EVO Coldgear Crew II Long Sleeve Compression Running Top Brushback Knit - Brushback knit fabrication technology traps heat for enhanced warmth. Flat Lock Seams - The Flatlock seams and raglan sleeves increase comfort and mobility. Anti-Odor Technology - Anti-microbe formula in the fabric keeps your garment feeling and smelling fresh. UPF 30+ - Protects the skin from the suns rays. 4-Way Stretch Construction - Improves mobility for an enhanced range of motion.