Having tried different anti-fog solutions over the years, I didn't think they worked. 10 years ago, I tried this and I've not looked back since! It's brilliant and I wouldn't be without it.
I'm a swimming coach and I recommend it to my swimmers. Some of them tried some of mine, then bought a different anti-fog and found it didn't work as well and then came back to order some of this one!
After a lifetime of testing all brands & models of goggles, I had the pleasure to try Swans SRX.
An amazing pair of goggles in terms of optical clarity and field of view.
I would strongly recommend these to anyone looking for the highest quality.
These are the only goggles I will use going forward.