I have become obsessed with them. You want one that is reasonably long. To the top of the hips or else, if it is shorter, it widens your waist. I tried one on the other day that just turned my upper body into a rectangle. Too long and it looks… old fashioned. It needs a gentle a waist. A curve.

Also it is more about the fold than the collar. I think the bigger the fold the better.

The bottom shouldn’t be too pointed…

Obsessed.