Personalized Future Scuba Diver T-Shirt. Scuba diving T-Shirt - Vintage Black outfit for boy or girl with diving mask, tanks and fins. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.