I saw this photo printed in the local paper today. It's of a NYSE specialist trader showing off his Union Jack sock (because Brexit just happened). I've seen the guy--big, handsome, Italian. It reminds me that floor trading is vigorous, sweaty work (it gets so hot that traders wear jackets with mesh panels on the back). Now, if it's warm enough to make those jackets necessary, and traders are on their feet for hours, imagine the heat and moisture build-up in their shoes, whether they're $100 or $1,000 a pair.