Some of the ladies in the Louisville Pipe Band have also said that the men's kilt doesn't "hang" right from/over their hips (not sure what that means - ladies?).

My piping instructor has had a couple of kilts custom-made with "a little extra hip room" (I don't know the details), and they do look better on her than her band-issued kilt. She's not a slender/athletic female, but she's not obese by any means either. I'd say on the zaftig side of normal.