Personalized 1st Valentine's Day Hearts Youth T-Shirt. MY 1ST VALENTINE'S DAY Youth T-Shirt - Heather with red, purple and yellow candy hearts. 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.