Choosing the perfect pair of shades or specs is easy when you know what you’re looking for. The main factor to consider when shopping for frames is your face shape. To keep things simple, you should choose a frame shape that is opposite of your face shape to complement your features.

##Glasses for Square Faces

Angular features, strong jawline, wide forehead, wide and defined cheeks, and a wide chin characterize square faces. The width of the forehead, cheekbones and jaw are all about the same. In selecting frames, you want to try and complement these features, rather than match them.

Lucy Hale wears Marin cat-eye glasses that perfectly complement her strong jawline. Maejor chooses to go with the Raleigh, rounded metal military style sunglasses. Sometimes the cookie-cutter fit guide won’t do, Robert Downey Jr. wears square glasses with custom blue lenses. He’s pictured here at the People’s Choice Awards wearing the Ditmar.

##Glasses for Round Faces

Round faces share characteristics of square faces in that the width of the forehead, cheekbones and chin are nearly equal. The difference here is that the features tend to be softer, and may lack the defined angles. Therefore, you should choose frames that add angles and definition.

Wiz Khalifa wears the Ashtray, white cat-eye sunglasses with a 90’s feel to complement his rounded face shape. Sometimes you may want to go against the grain like Nina Agdal does in the Nomi round sunglasses. Or you can always go with an essential like the Norie cat-eye sunglasses Yara Shahidi wears.

##Glasses for Oval Faces

Oval faces are longer than they are wide and feature a narrower chin and forehead with wide cheekbones. Oval faces tend to be well balanced. If you’re lucky enough to have an oval face, your choices are endless since oval faces can pull off nearly any frame style. Just be sure the frames are at least as wide as your face is, at its widest point.

Emma Roberts and Amanda Seyfried both wear the Remmy, our heritage retro-round sunglasses are perfect for oval faces. For a fresh look you can’t get anywhere else, Desiigner wears the Ashtray, cat-eye sunglasses with angles that jump off your face.