so far the best, but with restrictions

I use the arena swedix "racing" for more than a year for 5 times a week swimming. After I tried many different glasses and had crushed me some "dark circles", I liked to stay at this spectacle: no dark circles and yet waterproof. This "must" is. Of course, adjust the rubber tabs on one's head shape and possibly beginning to experiment a bit However, since everyone has a different head shape, I do not think that one drawback.
At the geknicketen glasses I got used quickly - after all it is to me less, around "underwater watching" than about protecting my eyes from chlorine and water.
The disadvantage I feel the anti-fog coating. She stops a few weeks - even without touching the inner layer. If this layer stable, I need not even renew the spectacle of the year. The construction is otherwise namely "endurance".