MLB New York Yankees Letterman Vintage Style Embroidered Logo T-Shirt Garment Washed Navy Crew Neck. Cotton Fitted T-Shirt. Will appear faded/vintage due to the garment wash process.eck. Cotton Fitted T-Shirt. Will appear faded/vintage due to the garment wash process. Officially Licensed by MLB Progressive Fashion With Vanguard Sports Cultures Don't Blend In With The Masses - Wear Something Unique! LETTERMAN T-Shirt By Red Jacket