90% polyester, 10% spandex, heathered, 145 gsm Hidden zipper with mock neck Durable performance with racerback stitchin Full stretch Fly Life: easy care, veratile, designed for comfort Swannies Golf Apparel partners with Green Story for a Carbon Neutral impact Carbon Offsetting: Through our collaboration with Green Story, we offset the carbon footprint of each of our products by supporting removal & reduction projects across the globe