Breathable TEK woven fabrication, built-in sun protection and moisture wicking technology makes this stylish button-front shirt a hot-weather winner. It also features an underarm gusset for ease of movement, handy zippered chest pockets and a hidden sunglasses cloth. AriatTEK® Heat Series technology keeps you cool when the competition heats up VentTEK™ technology features body mapping to enable air flow and regulate body temperature Sun Protection Fabric™ provides protection from ultraviolet rays Moisture Movement Technology™ wicks moisture away from the skin Greater Arm Mobility underarm gusset for maximum range of motion Hidden microfiber lens cloth on shirt tail TEK woven fabric Extended breathable mesh yoke Hidden collar buttons Zippered front chest pockets 100% solid polyester ripstop