The differences in temperature between the outside and the inside of a pair of goggles create condensations that cling onto the lens and obscure vision.
Thermals lenses eliminate this by creating a layer of sandwiched air between the two lenses. This layer of air acts like a thermal insulator, allowing the inner lens to have the same temperature as that of our face, thus systematically preventing the cause of moisture condensation on the lens.
Upgrade your FMA-F1 masks and dominate the battle field with clear vision!