Dare to be original when you throw on the numero uno bestselling pair of biker sunglasses in the world, X-KD's made by Pacific Coast Sunglasses! These particular KDs are an improved version of the originals in that they're 20% bigger than the original frames, giving them a classic look for people with larger heads or who prefer a different look. This particular set features 1 pair of black frames with smoke lenses and 1 pair of black frames with clear lenses, the ideal duo for day and night protection. So whether you've been wearing these glasses for decades or you're more than a little motivated by the Sons of Anarchy, you either know are will soon learn that KD's are so popular because in addition to their cool look, they keep the wind out of your eyes by fitting tightly on the temple and the nose bridge. Made for men and women alike, you're sure to love the style, performance, and fit as well as the variety of lens colors and wide array of colors and designs. Our lenses run from the standard smoke lens to yellow and clear and amber and mirrored and polarized lenses, too. KD's fit comfortably under a helmet and feature a sturdy frame with wire-reinforcement at the temple and boast shatterproof polycarbonate impact-resistant UV400 lenses that exceed ANSI Z87.1 standards.