The Kids Op Rashguard Swim Shirt in size 5T is a solid white swim shirt made of a blend of polyester, spandex, and nylon. It is designed for beach activities like surfing and recreational swimming. The brand, Op, is known for its quality swimwear, and this rash guard is machine washable for easy care. Perfect for both boys and girls, this swim shirt is perfect for protecting young swimmers from rashes while enjoying water activities. Small mark on the back as seen in last photo