A common standard Bayer Ratio equal to “4” or greater isĬonsidered by the industry to be a premium coating. A Bayer Ratio of “7” means that the uncoated standard lens had seven times the haze gain as the coated lens. A Bayer Ratio of “1” means that theĬoating has equivalent abrasion resistance to uncoated lens. The ratio of haze gain of the uncoated lens to the coated lens is the Bayer Ratio. This test subjects both a coated lens and an uncoated lens toĪbrasion from oscillating “sand.” After a set number of cycles, the haze gain is measured on both lenses. The mountain biking experts at The Adventure Junkies have pulled together a list of the top 10 best mountain biking glasses for all types of conditions, so your eyes will be protected from everything on the trail. The Bayer test is one of the most often cited test methods for abrasion resistance. Glasses are an essential piece of kit for mountain bikers because they do so much more than just cut out the suns glaring rays. A rating of 4 or higher equates to a premium coating. SCRATCH/ABRASION RESISTANCEĬaptivate lenses achieve a Bayer 7 rating* for scratch resistance. Smudging and water spots, making the lenses much easier to clean than an uncoated, standard lens. Wiley X utilizes a proprietary oleophobic coating on all Captivate lenses to create a smoother lens surface, which helps to keep dust, dirt, oil, snow and water from sticking to the lens.

Tech flex type frames and glasses