Last year, Rick Martin, the founder of Fairway & Greene, launched an eponymous new company devoted to natural fiber apparel. Martin's Spring '13 line re-introduces a classic style from the "Mad Men" era—the woven popover. What's a popover? Picture a short-sleeve sports shirt with buttons that end around the solar plexus. It's a versatile piece that can be dressed up with a cardigan or blazer, or thrown on over a golf shirt after the round. With the marketplace flooded by polyester, it's nice to see good old-fashioned cotton now and then.