OVAL & Triangle
Oval is considered the holy grail of face shapes for sunglasses because it will work with 99% of styles out there. Since your head is longer than it is wide and has a more rounded jaw, this allows you to wear square, rounded, aviator, club masters, virtually any style and shape.
The only thing you have to watch out for is frames with arms that hang too low, as this will elongate the face further – which you want to avoid.
You want to stick to any style of sunglasses that are the opposite of your face shape – so anything square needs to be avoided – make rounded frames your new religion. This helps to create balance by either softening harsh features or creating definition.
Styles That Work Best: Aviators, Clubmasters, rounded, John Lennon style frames.
Using the same rule as the square face shape, you need to avoid anything round. So think square or rectangles for your sunglasses. This will create balance on your face shape by making your fuller cheeks appear slimmer.
Choose a style with a strong brow line and that is just a little wider than the your head. Angular glasses will also help to elongate your temples and lengthen your face.
Styles That Work Best: Wayfarers, square frames, Clubmasters
To give your rectangular face shape some balance, go for sunglasses that add width to your face. Round or square frames will work, but you want to go for larger or oversized styles.
Styles That Work Best: Wayfarers, D-Frames, Clubmasters
HEART & Diamond
This is the most difficult face shape to figure out because the narrower chin is countered by a wider forehead, so it’s going to be real important to not add extra weight to the top half of your face.
The one style that’ll work best for you is Clubmasters because it is semi-rounded and will help balance out your pointed chin. But other rounded frames will also work for your face shape. The goal is not to add big bulky glasses, and keep them rounded because of your sharp chin.
Styles That Work Best: Clubmasters, Rounded Frames.