This is an official Red Sox t-shirt. It's a Matsuzaka one. I bought it when I went to Boston before, and it's unworn, but please be aware that there is some aging. [Design] The words "RED SOX" are printed largely on the front, and the player's name "MATSUZAKA" and number "18" are placed on the back. It's a special item for fans. [Material and Size] The material is cotton. - Brand: Red Sox - Color: Navy - Design: "RED SOX" letters on the front - Player Name: MATSUZAKA - Number: 18 Thank you for looking.