Built for optimum flexibility and movement, 2XU 's designs aid sporting performance and keep you comfortable at all times. - This long sleeved top uses compression technology to enhance upper-body hold and posture during intense training - Constructed from the label's 70 denier PWX FLEX, it offers flexible support to the torso, shoulders and arms - Breathable Powermesh panels aid ventilation and regulate temperature - Antibacterial fabric helps wick away sweat to keep you dry, and provides UPF50+ sun protection - Flatlock seams prevent chafing Shown here with 2XU tights, Nike Running sneakers, Under Armour shorts, Under Armour jacket, Nike socks. - - Black PWX FLEX - Crew neck, Powermesh panels, reflective trims - 72% nylon, 28% elastane; trim: 93% nylon, 7% elastane - Machine wash cold - Imported