Crystal Sky Aviator Sunglasses W/ Brown & Clear Ifr Lenses Kids Flight Headset Can be used to a

Can be used to a maximum temperature of +300 F

it can be much less

and coal furnaces

Old Part Number : 301-408-870

Crystal Sky Aviator Sunglasses W/ Brown & Clear Ifr Lenses Kids Flight Headset Can be used to aFull Set (3 Lenses and Frame) Convenient, Lightweight Glasses. Portable and lightweight, these glasses are a superior option to flight training hoods or visors for both cost and convenience. They easily slip on and off while effectively simulating instrument flight conditions, and are light and small enough to take anywhere. The IFR lenses are frosted to partially block the wearers field of vision, and the highbrow area prevents peeking while allowing