Official SBK (Superbike) Sunglasses from Italy. They are fully polarised and have UV 400 protection. They are also made out of a light weight material and fit comfortably on your face. Please visit the website for more details. SBK Eyewear offers a wide variety of styles in our line of polarized glasses. Because of the special laminated filter in polarized lenses, glare is virtually eliminated. These glasses also improve visual comfort and clarity while also reducing eye strain, and allow for a true perception of colors. SBK's combination of frame quality, style, and coating are unmatched.