2XU Men's Ice X Singlet 100% Polyester Imported Ice XP fabric with Xylitol reflects UV rays, lowering skin temperature by up to 5.4 F Antibacterial and moisture-wicking properties keep sweat and odors in check Reflective details help you be seen better in low light running conditions Performance-enhancing style is fitted, without chafing or irritation Ideal for running or working out in the heat