Bricekolob,

I work with a limited budget so my kilts are on the inexpensive end of the scale.
SWK - Economy (very light and comfy, great for hanging around the house, I don't usually wear it out, except the occasional exercise walk)
SWK - Standard (heavier acrylic, still very soft and comfortable acrylic)
SWK - Heavyweight Wool (quite comfortable not quite as soft a hand as the acrylic, but a bit sturdier feeling)
The Frugal Corner - "16 oz. Acrylic - feels a bit stiffer than the SWK standard Acrylic, not as substantial as the heavyweight wool)

I find all of these quite comfortable and am happy to wear any of them all day long.

Hope this helps, Happy Kilting,

Marshal Moroni