A boon to welders and solar-eclipse fans, the Speedglas SL helmet has an auto-darkening filter on the shield and four selectable levels of light filtering. The helmet's strong, non-absorbent material also happens to be very lightweight, making the SL the lightest welding helmet you can find, meaning users can wear it longer for those big welding jobs. The impressive design earned the SL a 2008 IDEA award, and the admiration of science teachers worldwide.

Via 2008 IDEA Design Awards