NEW MLB Authentic Collection Major League Baseball Licensed Team Favorite Tee (All 30 Teams, 5 Adult Sizes) Majestic Officially Licensed MLB Authentic Collection Team Favorite Tee. 100% Cotton Short Sleeve Crewneck Tee with Full Chest Authentic Screenprint Decoration. AC transferred locker tag in 5 Adult Sizes (Small - 2XL). All 30 Major League Baseball Teams. Great for Fans Supporting Their Team, Little League Parents, etc