Like your Oma wore while her dance card filled up full. Inspired by roller derby queens who are not afraid to body check as they take a curve, meet Nepetalactone. Light in weight but not a lightweight. Matierals: Proprietary frq™ lenses are infused with blue light blocking technology to reduce eyestrain and improve sleep. Lenses include anti-reflective, scratch-resistant coating. Premium, bio-based acetate frame with 5-barrel industrial hinges. "Frame Width - 145mm Bridge Width - 16mm Lens Height - (does not include frame) - 39mm Lens Width - (does not include frame) - 52mm" Temple Length - 145mm Hinge-to-Hinge Width - 132mm Vintage style, medium fit A cat-eye frame ideal for all face shapes.