Personalized Sealed With A Kitty T-Shirt. T-Shirt - White with a canceled postage stamp, a kitty cat and paw prints, says SWAK, SEALED WITH A KITTY. Perfect for cat lovers on Valentine's Day. Everyone loves our Custom T-Shirts! 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.