This Under Armour Boys Tech T-Shirt in CastlerockRed Solstice is a must-have for active young athletes. Made from 100% polyester, the ultrasoft UA Tech fabric ensures a natural fit and comfort. Its designed to wick sweat and dry quickly, keeping your child cool and dry during activities. The anti-odor technology helps maintain a fresh scent. Size Ysm, perfect for boys. Ships fast. 30-day returns for peace of mind.