後來問線上客服,回覆是 It is a little confusing but if the product name says Fitted it would be our slimmer cut shirt. 所以只要Pendleton 產品是寫fitted,那就是fitted,
我另外問了胸圍37該買什麼size,供參考
The Fitted versions are slimmer/fit closer to the body. A medium would have a chest of 37-39 for the fitted shirts. I typically were a Medium in the Regular sized fit of the men's shirts, if I go to a Fitted version I would go to a size Large.