This kids' crew top is made from recycled polyester and spandex printed jersey fabric that is soft and sweat-wicking. The 200 g/m² fabric provides lightweight warmth and UPF 50+ sun protection. It is designed to fit snugly for optimal performance, with soft, durable flatlock seams and thumbholes for a secure fit. Size M (10–12) weighs 120 g (4.2 oz). Machine wash cold on gentle cycle; tumble dry low. Not intended for sleepwear.