I was never a friend of swimming goggles and had me put on a very rarely. Since early this year, I go regularly in the indoor pool. I swim for an hour and a half to a train to the other and have it used swimming goggles from Crane. After no more than every other track I had to take and wash as they fogged his glasses from his head. That's over now with the new Aqualung CAYMAN. Yesterday I was in the pool and have during the first paths tested the glasses and properly adjusted. The lenses I have not worn inside with spit! After that, I'm 35 minutes swum without once taking his glasses off his head. The glasses were always crystal clear and never fogged. The prerequisite is an optimal adjustment. The headband can be adjusted quickly and easily. For this I had not take the head the glasses. The sight of this spectacle is impeccable. I had an hour to swim no bruising around the eyes and already look forward to the next time. To clean, I have the specs after the swim with clean water (no chlorine water) rinsed. Let's see if the glasses still do not steam up after repeated use. I will report. Conclusion: I would buy again.