NATEK Polo Product Features : AriatTEK® is designed for optimal comfort in any weather, with built-in performance features that adapt to changing conditionsFreshTEK™ odor control helps keep you feeling fresh through long hours of wearMoisture Movement Technology™ helps wick moisture away from the skin to keep you dry and comfortableSun Protection Fabric™ helps block harmful UV rays, keeping you covered and comfortable during long days outdoorsVentTEK™ mesh panels provide ventilation in key areas to help keep you cool and comfortable Men's TEK Polo Shirt in Black, Size: Small by Ariat