49-22-145. Named after world-class climber Ed Viesturs, this round acetate frame has a keyhole bridge and a stylish enamel filled metal crossbar. The temple flaunts a subtle gold-plated and enameled plaque. 100% pure titanium plated in 12k silver, 18k gold, or 24k gold combined with Japanese cotton-based acetate temples and a hidden spring hinge. Polarized CR-39 sun lens with a hydrophobic coating and a proprietary 12 layer anti-reflective UGR12™ coating, 99.9% distortion free, carry 100% UVA/UVB protection, block eye-fatiguing blue light, and are coated with Diamond Cast™ anti-scratch coating. Individually numbered and handmade in Japan from the world’s finest artisanal craftsmen.