Since I have contact lenses, I need a Brille.Die Vista Lady is a little big, but wonderful for swimming and even scuba diving. Due to the size I have no pressure points and a very good Sicht.Die glasses sucks good to me and fogged weekly at least one month 2x. not swim. I had first a conventional and more water in the glass, as pressure points. With these glasses I could crawl quickly and even diving and splashing the first time in years. Have a lot of fun with it.