OK - you get what you pay for.,
Verified Purchase(What is this?)
This review is from: Rayzor Professional UV400 Black 2 In 1 Cycling - MTB Sunglasses / Goggles, With a Clear Yellow Anti-Glare Clarity Lens and a Detachable Elasticated Headband & Inner Foam Padding (Misc.)
I wear my Rayzon glasses while on my lunchtime cycle - the build quality is OK, But the lenses are very difficult to clean given the foam protection around the back of the frames. It means the 4mm or so around the frames are never really clean.
but they are a comfortable wear and I do continue to use them.