Shop All › 1989 SF 49er's Joe Knows Super Bowls Crewneck Image 1 of 3 Image 2 of 3 Image 3 of 3 1989 SF 49er's Joe Knows Super Bowls Crewneck $40.00 Size Extra Large, measures 23” (Chest) by 26” (Length). Add To Cart Added! Size Extra Large, measures 23” (Chest) by 26” (Length). Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More