Pay Zero Sales Tax on The Oakley M Frame sunglasses have always lived up to higher standards. Meeting ANSI standards year after year, the M Frame has been approved for wear specifically as a safety glass. The Oakley ANSI Industrial M Frame takes the same Heater and Strike frame shapes you love and lets you wear them in the shop or into battle. These sunglasses are the Standard Issue for the armed forces. Meeting all ANSI Z87.1 impact and optical requirements, you know you're baby blues are in good hands when put on these M Frames. In addition, you'll get the same optical clarity Oakley provides in all their glasses, plus protection from all UVA, UVB, and blue light. Oakley, M, Frame, ANSI, Industrial, sunglasses, safety, glasses, impact, resistant, military, shop, work