The Mac Polo Shirt with Galvin Greens Ventil8 plus cool layer system enjoys a contemporary design and 20+ UV protection. The Ventil8 Plus fabric can remove heat and perspiration away from the body at double the rate of ordinary Polyester shirts, this ensures a more constant and comfortable fit. Ventil8 is the material at the forefront of Galvin Greens multi-layer concept; the material is extremely breathable and has incredibly high moisture-wicking properties. The material has antibacterial properties for that constant fresh feel and the shirts profit from the fact that they are minimal maintenance; no ironing is needed after washing.