While many choose to look back, we continue pushing forward. A wire rim lens topped by the sharp details of the Knoxville frame, create a perfect union of form, function & style. The result is a balanced design that is clearly ahead of its time. Frame: 6 base mold injected Grilamid frame with a 3 barrel hinge. Stainless steel Monel eye-wire. Material: Plastic, polycarbonate.