Keep cool and comfortable in the heat with the Columbia PFG Freezer ZERO Polo. Lightweight 92% polyester, 8% elastane fabric is bolstered with industry-leading Omni-Freeze ZERO technology, which reacts to your sweat to lower the temperature of the fabric for instant and prolonged cooling. Built-in Omni-Shade UPF 50 sun protection shields your skin against harsh UV rays. An antimicrobial treatment helps reduce odors so you stay fresher longer, while a hidden mesh cape vent in back offers increased airflow. The three-button front placket allows for controlled ventilation to adapt to changing conditions. Modern Classic fit. Imported.