Some of the innovations in the area of ​​tourism equipment invariably make me (smile), they are exposed to “watertightness” as their main feature. “Waterproof” shoes, “waterproof” hermetic bags…

Foggy glasses

You can not have windows, glasses or any other optics. Correlate, where they occur certain inconveniences. After all, what, in fact, is fogging? Due to the temperature difference….