According to statisticians, one out of every five mountain-town locals (read: Boulder, Bozeman, Telluride, Whistler, et cetera) no matter what the forecast throws, fails to function in anything other than flip-flops. Since no 12-step program is currently available for the afflicted, Simms adds another pair of wicked “four-season” Flips to the mix. Enablers? Perhaps. Aficionados? More like it.