How to choose the motorcycle goggles

Motorcycle goggles are designed to block out the main source of ultraviolet light, sunlight through the atmosphere is the main impact on the human body is UVA, When choosing glasses, just make sure it is UV400, It blocks uv wavelengths below 400nm. Because the wavelength is shorter than 290nm ultraviolet radiation is absorbed by the ozone layer in the atmosphere, long wave ultraviolet (UVA, 315~400nm) is the most likely culprit to harm the eyes and skin. Brands are offering lots of fancy lens colours in light grey, tan or amber. Gray absorbs infrared rays and 98% uv rays. The biggest advantage of gray lens is that the original color of the scenery will not change because of the lens, wearing dark green lens will be more comfortable. Tawny and brown colors have a higher contrast and a better sense of distance.