When it comes to sunglasses, the larger the frame, the more protection you will get. Small, narrow frames offer less protection from the sun’s harmful rays. On the other hand, an oversized frame on a small face can ruin your overall look, and a small frame on a large face is unflattering as well. So, make sure the frame size you choose looks fantastic on the size of your face. One should try different frames to ensure the bridge, length of arms and lens suits the face size. Overall, people with a small face should opt for frames with lenses of about 52mm. And lenses of about 54mm width flatter faces that are large or round.