Felted Bag?

I’m making a felted bag, no pattern, just something in my head. But I’ve totally forgotten which way it shrinks the most. In the round or the length? I remember the book “Felted Knits” put markers on a piece so you could see the difference.

I think the general finding is that is shrinks more in height than width. So the bag pre-felting looks out of proportion- really tall- but after, it looks normal. at least that is what my “felt this” book says…