Frequently Asked Questions

Snow FAQsSnow FAQsSnow FAQs

Q: What is UV radiation, and how is it harmful to the eyes?
Ultraviolet (UV) radiation is electromagnetic energy. The wavelengths of this energy are outside of the visible light spectrum. UVA rays are primarily absorbed within the lens of the human eye. It is hazardous to your eyes because it has a cumulative effect, which means that any damage it causes is irreversible.
UVB rays burn your skin and can damage your eyes. Combined with cold wind and snow, UVB has the potential to cause snow blindness, cataracts, and other nasty stuff that will end your fun! UVC is harmful too, especially to the cornea region of the eye, but it most of it is absorbed by the earth’s atmosphere before it can reach your eyes. All Giro sunglasses provide 100% UVA/UVB/UVC protection up to 400nm.
Q: What is the best color for a lens?
The color of the lens is only half the story. The other half of the story is the visible light transmission rating (VLT) of the lens. Each has a role in helping to enhance your vision and comfort. LENS COLOR emphasizes or filters colors that affect your vision. VLT RATING is the amount of visible light that is transmitted through the lens to your eyes. Amber or Rose-colored lenses enhance the grays that mark shadows on a road or snow slope. Yellow or Orange lenses block out the blue light that creates a “hazy” effect on your vision. Grey lenses maintain the truest color.
By matching the lens color to a VLT rating that provides your eyes with the right amount of light, lens tints enable you to make out shadows, hazards and so on more clearly. Giro offers a full range of lens tints that are tuned to enhance your vision in a variety of conditions.
Q: How should I clean and store goggles?
Lenses can be damaged by many common cleaners and materials. For best results, clean lenses using a soft cloth to remove fingerprints and smudges. If they’re dirty you can use warm water and mild soap (such as a mild dish soap) to remove the dirt, then allow the lenses to dry before wiping them clean with a cloth. After each use, clean the lenses carefully and then store in a cool, dry place, preferably in the bag or case they come with. If you have any questions as to the condition of a sunglass please call us for information or to set up a free inspection.