I am a big guy, average height, 38" waist, 54" jacket, 21" collar. Regular ties end half way down to my belly button. Though I cant button the collar the rest of the custom fit Ralph Lauren shirt fits like a tailored shirt. (I thank George Bush for addressing the nation without a tie, he set a new standard in my book). They are expensive but I find it worth it for the fit.
My husband really looks good in this shirt! Love the rich purple. He will wear this with black, gray or khaki pants. This shirt is more of a fitted shirt, but not so fitted that it is too tight on him. I ordered an XL as I always do, and it fit great. Good looking shirt.