Costanza brand, 100% cotton baseball uniforms. Much better than polyester. It breathes! Inspired by Seinfeld. Printed on our super soft 100% airlume ring-spun & combed cotton long sleeve T-Shirt. Or upgrade to our Luxury 52/48 cotton/poly vintage heather edition for an even softer classic look. We print & ship all of our high quality graphic tees in the USA.