The Proline Cool-Vent with UV protection features jersey on the outside and mesh knit on the inside with meshed vent on the back and the underarm for the ultimate cool comfort. The shirt has double needle top-stitching, Side vents, "TUCK HOLD" patch and ultra flexible Mobilon taping on the shoulders for better maneuverability, Sleeve and armhole are generously cut for ease of movement and comfort.