Aspex Eyewears renowned patented TurboFlex technology allows the temple of the frame to rotate 360??, ensuring maximum durability and comfort for the wearer, ideal for the modern and tech-savvy man as well as active children who need a durable frame for everyday use. Using a new blend of materials in a unique configuration, TurboFlex provides total flexibility with a combination of a monobloc end piece and a rigid monel temple. TurboFlex frames require minimal adjustments, deliver long lasting comfort and maintain their original fit. The Turboflex hinge technology can be used in acetate, aluminum, stainless steel and titanium temples.