I swim five times a week and I think I tried every brand and much of the existing models on the market. Among those that break your eyes (as in the skit Gal Elmaleh lol) and those that are not really waterproof or at least one di = ilo replace several times during its swimming session, I began to despair! This model has great area where suddenly it is not based directly on the eyes and are REALLY comfortable it's a relief! It shows really fine as well as that out of the water and that too is impeccable. Of course we must naturally flush with clear water after each session (like all others) but the difference is that they really last longer! For the price, this is a great investment because it is robust and reliable material that will last you a long time even with heavy use like me.