Made out of a soft, lightweight ribbed swim fabric. Mix and match with our other swim line pieces. Perfect for that extra layer out in the sun! Sizing: True to size. Buy child's current size. You can size up when in doubt, but we do not recommend sizing up several sizes above your child's current size. Keep in mind swim fabric has stretch and also becomes looser when in the water. Care: Machine or hand wash cold. Lay flat to dry. As with all swimwear, please take care not to have your child rub garment on rough surfaces. It will cause the fabric to snag or pill. All of our swim do not have added chemicals for sun protection. Please take care and use your favorite sun protection when playing out in the sun.