The cool new Oakley Inferno is a goggle with a lens that can instantly de-fog itself should you manage to get moisture on the inside. It does this by using an electrical current passing through a heating element in the lens itself. It’s a very similar system to those that have been in cars for years. The power for the pack is carried on the goggle strap and is no more obtrusive than the similarly shaped action cameras on the market.
The Radar Pace is an excellent example of a fully integrated wearable that employs ergonomics, biometrics, GPS, wireless coms and advanced manufacturing methods.
Check out his amazing example done with Intel and Oakley. It enables atheletes to leverage real time training input that is informed by biometrics, GPS and personalized training regimens.