Personalized Red Heart Valentine Youth T-Shirt. I Heart Youth T-Shirt - White with the cute red heart design. An I love you gift, Valentine's Day sweetheart gift or heart gift for a friend. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.