Crafted from thin Japanese titanium, the Barton Perreira "Armstrong" aviator sunglasses feature a sleek double bridge and crosshatch temple details Eye/bridge/temple (in mm): 55-16-148 Gradient lenses Adjustable nose pads Signature logo engraving on temples Thin, tapered arms 100% UVA/UVB protection Made in Japan Proposition 65 warning for California residents