NWOT Mantra Men's Catalyst Polo Humpback Golf Performance Athletic Shirt M The Mantra Men's Catalyst Polo is a high-performance athletic shirt designed specifically for golf enthusiasts. Featuring a stylish humpback color and a collared neckline, this polo provides both style and functionality on the course. The regular fit and size M make it a comfortable and versatile option for any golfer looking to up their game with a quality polo shirt.