Search up that thread on extenders it'll show pics...for $15 from Rocky (USA Kilts) you can't go wrong...you'll be ready for 40 and 42. check the width of your existing straps to get the right size.

I found that since all three extenders are used the apron stays balanced. The left extender is hidden under the kilt. The right side just looks a little more "metallic"

I'm using them on two hand sewn wool kilts that "shrank" on me.

Ron