I Love these sunglasses. They are so much better than my regular driving sunglasses. They fit snug but not too tight. The frame helps keep them in place so you can run, without the likelihood of loosing them, they are lightweight and the frames are very sturdy and thick, They are great for Sun protection and look very nice too. Very stylish. Overall excellent pair of sunglasses. They seem to be built very well and the lenses are awesome, definitely recommend it to anyone.