Some things (aviators, leather bomber jackets) never go out of style. Others (Tom Cruise, Kelly McGillis) don’t quite stand the test of time. Keep yourself in column one with a pair of Randolph Engineering shades. The Massachusetts-based company made aviator-style sunglasses for the U.S. Department of Defense before Mav and Goose. The nine sun-blocking styles (with names like Intruder, Crew Chief, and Concorde) are all customizable. You pick your frames (shape and color), lenses, and fit, and you’ll have them in under six weeks. The company’s sole focus is performance and comfort; the hot styling, $100- $120 price tag, and under-the-radar branding are just a bonus. And the specs fit like a glove, so you’re not likely to lose them. Or that loving feeling. Available at Stel’s, 334 Newbury Street (617-262-3348 or stelsinc.com); online at randolphusastore.com.