Part of Oakley's military-ready Standard Issue series, Oakley SI Ballistic HNBL OO9452 Sunglasses meet ANSI Z87.1 Industrial Standards for high-mass and high-velocity impact protection, keeping your eyes protected in the field or on the range. These Oakley SI sunglasses also meet MIL SPEC 32432A eye protection standards. The low-profile design and easy lens exchange allow you to seamlessly transition from on-duty to off-duty; it can also hold other lenses, including industrial prescription lenses (not included). Plutonite polycarbonate lenses filter out all UVA/UVB and harmful blue light up to 400nm. Lightweight, stress-resistant O Matter frames feature an Unobtainium nose pad for a Three-Point fit. Thin earstems make the use of over-ear hearing protection and communication systems easier. These Oakley sunglasses are fully compatibility with MICH, ACH, CVC, PASGT, Ops-Core, Team Wendy, and Crye Helmets and weigh next to nothing (1.07 oz.). These Oakley military sunglasses come with a mfrs. 2-year limited coverage warranty. Manufacturer style #: OO9452. Plutonite lenses filters out all UVA/UVB and harmful blue light up to 400nm Meets or exceeds MIL SPEC 32432A and ANSI Z87.1 Low-profile design features quick, tool-free lens changing Fits other lenses, including Industrial RX lenses (not included) Lightweight, stress-resistant O Matter frames with nose pad Thin stem technology for easier use of over-ear hearing protection and communication systems Fully compatibility with MICH, ACH, CVC, PASGT, Ops-Core, Team Wendy, and Crye Helmets Ultralightweight design (1.07-oz. total weight) Includes mfrs. 2-year limited coverage warranty