5.1 oz. 90/10 polyester/spandex, heathered; Lightweight; Three-button placket with collar stand; Geo print accent on inside of placket and collar stand; Carbon Offsetting: Through our collaboration with Greenstory, we offset the carbon footprint of each of our products by supporting removal & reduction projects across the globe; Swannies Golf Apparel partners with Green Story for a Carbon Neutral impact;