This shirt is called Henley because it became popular in a small town in England called Henley-on-Thames in their rowing competitions as an undervest. Later, it was named after this small town, Henley.

Tee shirts are a vast category, and Henley is kind of one of them. Normally, tee shirts can be of any kind, while henley is especially one that is collarless and has a placket of 4 to 5 inches with 2 to 5 buttons on it.

Henley is typically a men’s shirt, but nowadays women's Henley shirts are popular too. So, anyone can wear Henley shirts, as they are very stylish and always in trend.

A polo is normally a buttoned neckline shirt without a collar, while Henley shirts are collared shirts with a buttoned placket.