The horizontal folds under the middle belt are usually indicative of a 'fitting fault' - usually it shows that the garment is a little too narrow at that height so it moves upwards to lie more easily. It can also indicate that there is too much length between two fixed points, but I think that the solution Steve suggests, of loosening the lower part of the kilt will solve the problem wherever it is being generated.

It will ease the tension at hip level, and give a smoother more / \ shape to the whole kilt, rather than having the pleats opening out below the fell. You could always have the lower fastenings but with a greater circumference in the garment so they are not under tension.

As I have often said to customers for the garments I make - just because you can wear something that size, it doesn't mean that you should.

Anne the Pleater :ootd: