Support your team in this Support your team in this USA Baseball 2023 World Baseball Classic White Blank Jersey. The full-button design and applique graphics are used for your player's name and number. There is no doubt you'll be ready to support your favorite player and team this season. The jersey is 100% polyester, has a rounded hem, and has WBC applique on center back neck.. The full-button design and applique graphics are used for your player's name and number. There is no doubt you'll be ready to support your favorite player and team this season. The jersey is 100% polyester, has a rounded hem, and has WBC applique on center back neck.