Vintage Striped Collared Shirt by Jantzen

Here is a great vintage shirt by Jantzen. Feels like an acrylic or cotton blend, and made in the USA. Black shirt with horizontal striping of yellow, blue, green, tan, red, and white. Sweet little collar with triangle detail. Medium weight, super soft and comfy. It's in amazing condition with tons of life left! The tag says Medium, but here are the measurements taken laying flat (please refer to the last pic to see how I measure shirts)

Chest (armpit to armpit) 21"

Shoulder to end of sleeve (including cuff) 6"

Length 24"