The sunglass size should be in proportion with the face size. This means that smaller sunglasses are best for smaller faces; larger sunglasses for larger faces.
The frame shape should contrast with, that is, be the opposite of, the shape of the face.
These tips must not be taken as rules but they can help you to choose your right frame.
Almost any style works for oval face. Experiment with the latest looks, such as wraparounds or shields. Square shaped frames with gently rounded edges
Frame suggestions : Any frame shape
Frames should make the face appear longer and thinner. In general, look for frames equal to or slightly wider than the broadest part of the face. Minimize the curves and add definition with soft, angular, rectangular styles or double brow styles. Higher temples will create a longer profile. Sunglasses with brow bars also pull the eye upward, making the face appear longer.
Frame suggestions : Wider frames with angular / rectangular styles
This face shape has wide or high cheekbones with a narrow forehead and chin. Oval sunglasses will soften the contour of the face, although softly curved square frames will work as well. Make sure the styles are no wider than the top of the cheekbones.
Frame suggestions : Oval, Square
This face shape consists of a strong jawline, a broad forehead and wide cheekbones. Reduce the angles with soft, curvy styles that will give the face some definition such as cat-eye styles. The classic ovals also works well for this face shape.
Frame suggestions : Oval or Round, Oval, Cat Eyes
Widen and shorten the face with sunglass styles that do not extend beyond the widest part of the face. Round or square shapes will look great on this face. Frames with short horizontal and long vertical lines also work. Decorative or contrasting temples add width to the face.
Frame suggestions : Round, Square
This face has a narrow jaw and a wide forehead. Soften the lower portion of the face by accenting the eye area. Styles such as cat-eyes should angle outward at the top corner and be wide enough to balance the jawline. You can also try metal frames with rimless bottom.
Frame suggestions : Frames with a traight top line, Cat-eyes
Try lightweight frames or those with a touch of colour such as rose or amber. Tortoiseshell frames suit fair complexions (avoid darker versions) but clear, blue or green tinged frames tend to drain colour from cheeks.
Olive, Mediterranean, Golden or Asian skin and dark hair can look stunning in silver, gold or clear frames – but avoid black which can be too heavy.
All metallic frames suit black skins and amber often works well – be very careful with black frames, which can look spectacular or awful!
Soft & curly
Enhanced by delicate shapes, rimless frames and translucent colours.
Choose a frame that follows your hairline. Classic small frames are advisable.
Geometric frames, or rounder frames look best.
Bold colours and designs, as well as decorative styles.
Try the frames with both your hair up and down, as the change in style may alter the look of the frames.