Vintage 60s Penguin Polo Shirt Munsingwear Grand Slam Medium U.S.A.

Good vintage condition. Fabric tag faded and illegible. Likely a cotton/poly blend from the 60s. Navy Blue with white stripe accents. Made in the U.S.A. *All measurements are approximate, though I try to be as accurate as possible. Pit to pit: 19” Shoulder to shoulder: 16.5” Overall Length: 29”