Palmer appeared in the postseason eight times and was a vital member of three World Series Champions, six AL pennant winners and seven Eastern Division titleholders. He is the only pitcher in the history of the Fall Classic with a win in each of three decades. He is also the youngest to pitch a complete-game shutout in a World Series, doing so nine days before his 21st birthday in 1966. He was one of the starters on the last rotation to feature four 20-game winners in a single season in 1971. He has also been a popular spokesman, most famously for Jockey International for almost twenty years.

This pair of Jockey shorts was signed in black by Palmer and inscribed, "Best Wishes." This item includes a Great Moments COA.