Details No sweat. This stretchy, high-neck sports bra is made of a lightly supportive and seriously comfy ribbed fabric that&';s perfect low-impact workouts and high-impact lounging. Made with a blend of organic cotton and recycled polyester that keeps perfectly good material from going to waste. 56% organic cotton, 41% recycled polyester, 3% spandex OCS certified Machine wash cold, line dry To avoid microplastic shedding in the wash, we recommend using a Guppyfriend Washing Bag Made responsibly in China