How long should a pair of swim goggles last?

Specialist-community reviewers we read generally expect six to twelve months of regular use before the anti-fog wears off or the silicone seal hardens, regardless of price. Chlorine, sun, and rubbing the lenses are the most-cited culprits. A few r/BuyItForLife and r/Swimming users report multi-year longevity with Speedo Hydrospex and Biofuse models if rinsed in fresh water after each swim.