Seattle Mariners Ken Griffey Jr. #24 Retirement New Era 9FIFTY Snapback Hat. Unverified autograph by Tony Zych #55 relief pitcher. Seattle Mariners Ken Griffey Jr. #24 Number Retirement New Era 9FIFTY snapback cap. Features a teal crown with contrasting navy flat bill, large embroidered “THE KID” lettering with Mariners compass logo on the front, and a special Ken Griffey Jr. Number Retirement patch on the side. Official MLB Genuine Merchandise by New Era. Size Medium-Large. Made in Vietnam from 100% polyester. #thekid #baseball