100% Hypercraft Cycling Sports Sunglasses Crystal Frame Sapphire Lens are new and improved to give you a larger field of vision and enhanced fit. With an optically correct decentered 6-base spherical lens, you'll experience greater clarity and zero distortion when wearing the Racetrap 3.0 sunglasses. The lenses are also interchangeable, so you get the perfect tint for your environment or activity. As for the frame's construction, lightweight and durable TR90 will keep you comfortable for hours on end.