Polyester double knit jersey with tackle twill numbers and lettering. Willie McCovey was given the nickname stretch for his defensive play at first base. After winning the MVP Award in 1969, McCovey made an offensive impact on National League pitchers. By 1973, McCovey's longtime teammate had gone back to New York and had hit his 660th home run. The San Francisco Giants would fall out of playoff contention as the Cincinnati Reds won the West. Quality Construction Authentic Materials. Accurate detailing. Exceptional workmanship. These are the hallmarks of Mitchell and Ness's shirts, jackets, sweaters and felt pennants. The wool flannel shirts are constructed of a lightweight wool blend predominant in the late 60's. The 70's and 80's knit jerseys are made of fabrics identical to the originals. Sleeve length is measured from top of armhole to bottom of sleeve. Size Body Length Body Width Sleeve Length 40 M 31' 21' 8.5' 4446 L 32' 23' 9' 48 XL 33'