The Merlin Polo Shirts have a four-button placket with a vented contemporary look to the back panels & sleeves, the fabric of the tops incorporates Galvin Greens Ventil 8 Plus technology, a technology that provides a high degree of breathability, moisture exclusion & a UV protection factor of 20+. The Merlin range of Polo Shirts offer tremendous comfort & provide a full range of unrestricted movement.