This ventilated shirt is perfect for making sure you stay cool and dry while riding onThis half-zip, mock neck ventilated shirt is perfect for making sure you stay cool and dry while riding on even the hottest of days! It's made with a soft, slightly textured material that allows air to flow through it for superior moisture management. Additionally, a contrast mesh lining is used on the underside of the arms for increased air flow. With these materials combined, you're sure to beat the heat and still look your best. 100% Polyester.