People should choose the suitable style and color according to the different hair, face and skin. If you have a long face, you should try to minimize the impact and make your face look shorter. Don't choose sunglasses with very narrow lenses. Recommend you to choose lens with bigger diameter, round shaped. Quadrate lens is suitable for round face. Big lens is the trend nowadays. It should be better. If your skin is fine, you can choose color of lense according to your preference and skin color. Brown and grey colors are very good choices, because they could provide 100% protection from the UV rays, and they are also very fashionable. Hope it is helpful.