I have found that here in Florida the best thing I can do is to forgo wearing kilt hose. In gets rather hot and humid here. I've become a big fan of wearing sandals when it's hot out. I have a pair that is closed toed and resembles Roman Sandals. Also I would like to add, going barefoot would have been more preferred by Highland Scots (historically). Especially the lack of use of Cadadh (I hope I spelled it right).