Pre-Owned/Great Condition. The Chicago Cubs True Fan 1/4 Zip Jersey is a blue baseball jersey made of 100% polyester material. It has a front patch of the Chicago Cubs team and is an officially licensed product of the Major League Baseball (MLB). The jersey has short sleeves with two front pockets. It comes in size M (38-40) and has a chest measurement of 21 inches and a length of 30 inches. The jersey has a 1/4 zipper closure and is manufactured in China under the Genuine Merchandise brand.