{07.03.08} Sunglasses

There's a reason why classics endure. They work. A pair of aviators will suit a multitude of face shapes and look both modern and nostalgic. Rather than go the more predictable (and expensive) Ray-Ban route, try Randolph Engineering. Never heard of them? Ask a fighter pilot. Or Michael Bastian, the Bergdorf buyer turned celebrated menswear designer, who sports a pair of the well-made shades all summer. According to Bastian, they're the world's most masculine (and sexy) sunglasses because they're the real deal. He's right. Since 1982, Randolph aviators have been standard issue for US military pilots and NASA astronauts. $99, at RaldolphUSA.com.

• Biased advice:
  When not in use, sunglasses should not end up on top of your head. Nor should they be worn backwards, as if you had eyes in the back of your head. Hang them from your chest pocket, your collar or your belt loop.