Personalized Swimming Rocks Light Youth T-Shirt. Swimming Rocks text with three happy, dancing rocks with swim goggles and flippers is a humorous gift design for swimmers and divers during pool and swim team season. 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.