The right pair of glasses can make any guy look 50 percent sexier instantly. (That's a totally unofficial stat.)

The only problem? With so many options at any given store, and new online glasses retailers like Warby Parker offering to deliver a new set of spectacles right to your door, it's hard to know what to look for. The solution is simple: Wear glasses that complement your face shape.

Here, we've assembled a set of representative good-looking dudes and a few frames that work for them. Use the tips below to find the perfect pair of sunglasses or prescription glasses for you.