Experience a new era in lens technology with the Oakley Unstoppable sunglasses. Crafted from durable o matter frame material, this rectangle-shaped style is designed for performance and comfort. The matte brown tortoise frames feature integrated Unstoppable temples with an engineered grip system for a secure fit and style. Engineered to deliver optimal vision, these shades feature prizm tungsten polarized lenses that enhance color contrast and sharpen details while reducing glare. Available with lens contrast enhancement technology.