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 upVentTEK technology features body mapping to enable air flow and regulate body temperatureSun Protection Fabric provides protection from ultraviolet raysMoisture Movement Technology wicks moisture away from the skinGreater Arm Mobility underarm gusset for maximum range of motionHidden microfiber lens cloth on shirt tailTEK woven fabricExtended breathable mesh yokeHidden collar buttonsZippered front chest pockets100% solid polyester ripstop