Made in the USA Plastic frame Plastic lens Polarized UV Protection Coating coating Lens width: 29 millimeters Bridge: 134 millimeters Arm: 136 millimeters OAKLEY SI: Oakley SI was created to improve the safety, performance and comfort of our soldiers and safety professionals. They offer the ultimate optical clarity and protection in combat ready equipment for those whose lives depend on their gear. M FRAME STRIKE INDUSTRIAL: The SI M Frame Strike Industrial includes three shields of pure Plutonite to control reflection and transmission, optimal for night and low light shooting. COMPATIBILITY: Standard Issue M Frame Strike Industrial frames are fully compatible with helmet-mounted night vision devices and MICH, ACH, CVD, PASGT, and Crye Helmets. GREY LENSES: Feature 15% visible light transmittance suitable for bright light, meets MCEPS neutrality and chromaticity requirement and blocks 100% of UVA/UVB/UVC up to 400nm. HDO Optics provide razor-sharp clarity as well as impact protection. FRAME FIT: O-Matter frames are lightweight (1.05-ounce total weight), chemical and impact resistant and durable for all-day comfort with quick, tool-free lens change technology, comms compatible ear stems, and rubberized nose pad for a secure fit. Show more
