From Callaway, this shirt features: Textured fabric Stretch to give full range of motion Cool ventilation: great for warm days on the green, the short sleeve golf shirt has ventilated fabric to keep you cool and comfortable. Swing tech™ designed for effortless movement with every shot Opti dri™ moisture-wicking technology built into the men's golf shirt pulls sweat away from the body for on-course comfort throughout your round. Classic golf fit - roomiest silhouette and slightly longer sleeves designed for ease of motion Polo collar Short sleeves Pullover construction UPF 50 sun protection  polyester/elastane Machine wash/tumble dry Imported.