Since 1833, American Optical has stood as a symbol of American ingenuity. Our pride in AO's heritage is matched only by our pride in our team's commitment to quality craftsmanship and customer service. The Original Pilot has been a favorite of U.S. military pilots since 1958 and continues to be AO’s most popular style. Expect uncompromising quality - engineered to rigid military specifications. Bayonet temple style with clear acetate temple tips, offering a sleek and vintage look not readily available on the market that allow you to take frames on and off without removing a helmet. Click-in nosepad arms engineered for stronger soldering and less chance of breakage. Designed to incorporate a vintage AO mark of authenticity. High quality PVC nosepads are supplied by German manufacturer, Frey Winkler. A click-in style allows for easy replacement. In our state-of-the-art American headquarters and factory, passionate AO craftsmen are at the heart of delivering you quality, timeless eyewear that defines True Original style, using only the finest global materials. AO Lifetime Warranty: We believe things should be built to last. AO Eyewear offers a lifetime warranty on all solder points that fail due to manufacturer’s defects. UPC 738921562184 ASIN B0B1WDHMFZ size 52 Millimeters Brand AO Color Black / True Color Gray Lens Material Metal Lens Type Non-polarized Arm Length 140 Millimeters Item Shape Pilot Lens Color True Color Gray AOLite Nylon Lenses Lens Width 52 Millimeters Style Name Op Black Frame Unit Count 1 Count Bridge Width 20 Millimeters Style Number Original Pilot Frame Coverage full-frame Sunglasses Form wrap_around Target Audience Unisex-Adults Polarization Type Non-Polarized Lens Material Type Nylon Frame Material Type Metal Age Range Description Adult Fit to Size Sentiment positive Lens Coating Description UV Protection Coating Manufacturer Part Number OP-352BTSMGYN Product Care Instructions Clean lenses and frame with a soft cloth. Avoid extreme temperatures. Store in a protective case. Recommended Uses For Product Driving, Hiking, Riding Ultraviolet Light Protection 100% UVA & UVB Protection