90% polyester, 10% spandex, heathered, 145 gsm Three-button placket with collar stand Fly Life: easy care, versatile, designed for comfort Full stretch Durable Performance with color pop on collar stand Swannies Golf Apparel partners with Green Story for a Carbon Neutral impact Carbon Offsetting: Through collaboration with Green Story, Swannies offset the carbon footprint of each of their products by supporting removal & reduction projects across the globe.