Gunnar Intercept 24K Tortoise Digital Performance Eyewear Part Number: INT-02301 Rim: Full Rim Frame Material: Nylon Polymer Temple Length: 132 mm Bridge: 18 mm Lens Color: Amber Weight: 0.77 lb. Feature: Wide format lenses create a panoramic viewing field for high resolution viewing Rigid lens mounting area keeps optics from degrading through lens flexing Multi-barrel hinges create rotational stability for long lasting fit Curved nose rests provide even weight distribution and eliminate pressure points Engineering grade injection polymers provide dimensional stability and long term durability