Which one would be better suited for a traditional/formal kilt?

[Destin_scot]

There is also the Frugal Corner. Semi custom acrylic kilts in many patterns

[Nighthawk]

Neither the Stillwater Heavy, nor the USAK Semi-Trad are acrylic, but it is something to consider on other kilts.

I own 3 Heavies, and they are great for the money. I don't own a Semi Trad, but I own 3 custom made Casuals, which are much the same except velco inside of buckles, a they are also nifty.

Geoff Withnell

Pete had mentioned the Stillwater standards, which is why I mentioned the flamability of acrylic!