The product arrived quickly, and the Swans guide on how to choose your prescription goggles was useful. I have been for one swim in a pool in the sec prescription goggles. I could see perfectly and they fit well. Great, I thought. Unfortunately, following that first swim the lenses and goggles were gently cleaned as I have done with all goggles from other brands I’ve used no problem in the past but whatever coating they have on them smeared on the goggle lenses and will not clear off or clean away so I won’t be using them again. They’ve been kept in their box throughout. At £43, this has been an expensive lesson.