AIRFLUX VENTILATION: Innovative mesh ventilation in the fabric of the golf top keeps you cool by allowing air to circulate, providing ultimate comfort on the course MOISTURE WICKING: Built-in moisture-wicking technology in the polo shirt moves perspiration away from the body to provide a dry fit that's comfortable for all day wear SUN PROTECTION: UPF 15 sun protection prevents damaging UV rays from penetrating the fabric of the golf shirt to help protect covered skin on sunny days REGULAR AND BIG & TALL SIZES: This short sleeve golf shirt comes in a classic fit in men's Regular and Big & Tall sizes from Small to 4X Large. EASY CARE: Machine washable, the men's collared golf shirt maintains its smoothness and good looks wear after wear, even with regular washing