All our frames are previously approved by a quality expert, approving them for use, the sunglasses can have multiple treatments but at least they must have a UV400 filter which is the maximum protection against the radiation of the UV spectrum.
In Vision & Vision you will always be minimally protected with UV400.
You could also provide us with your formula and talk to one of our experts, we will advise you on which is your best option technically in frames for formulated sunglasses.
Contact us here: https://api.whatsapp.com/send?phone=573158005550
