Our Malibu sunglasses feature a large TR90 fashion frames with wide temples and PC polarized lenses. Your order arrives packaged in a microfiber pouch which doubles as a cleaning cloth. TR90 is a super-polymer compound that is extremely lightweight, incredibly sturdy, but very flexible. PC (polycarbonate) lenses are about 10 times more impact resistant than normal plastic or glass lenses. They are lightweight and provide ultra violet (UV) protection. Frame Color:  Shiny Tortoise Lens Color:  Smoke Smoke lenses, the most popular, keep colors neutral while the medium to dark gray smoke tint blocks the sunlight. This results in less bright light reaching the eyes which reduces eye fatigue and minimizes glare.