Verified Purchase(What's this?)
This review is from: P&P Inc. American Flag Wayfarer Sunglasses Glasses
I'm an adult with a hat size of 7 1/4". I ordered the 52mm glasses and they fit perfect. They survived an entire weekend at the lake; which is no easy feat on jet skis, boats, and rope swings. No regrets here other than not getting the other lenses colors as well.