Whats the supposed benefit of the Speedo Biofuse goggles having anti-fog coating on both the inner and outer lenses, when in reality, the inner lens is where fogging occurs most frequently due to the difference in temperature and humidity between the goggles and the surrounding environment? Doesnt the application of anti-fog coating on the outer lens just serve as a marketing gimmick, adding unnecessary cost to the product without providing any tangible benefits to the user? And how does the Biofuse goggles frame design, with its supposedly unique curved shape, actually enhance the users swimming or triathlon experience, especially when compared to other goggles on the market with more traditional frame designs? Is it just a matter of aesthetics, or is there some actual science behind the design that Im missing? And whats with the lack of availability of replacement lenses for the Biofuse goggles - is Speedo intentionally trying to force users into purchasing an entirely new pair of goggles every time a lens becomes damaged or scratched, rather than providing a more cost-effective and environmentally-friendly solution?