Winter, among other things, is the time of frozen lips and facial hair frost. And forget the scarf wrap-around and the bank-robber mask. They simply don’t work to forestall these bothersome side effects of enjoying the great outdoors when the thermometer dips into single and negative digits. The Xchanger Face Mask, however, just might do the trick. According the Herrington Catalog, the mask ‘captures your own body heat as you exhale, then warms incoming cold...