Quote Originally Posted by Kilted KT
does this apply to a kilt or belted plaid? I do not think so, as they are "sealed" at the top by a belt, preventing the warm air from escaping. this is one of the reasons wool kilts are so warm in the winter, as they trap the warm air within them.
It's not just the air trapped in the "bell," but the air trapped in the layers and folds and pleats.

If you rearrange things a bit in a belted plaid, you can get air circulating rather nicely.