Oakley SI Industrial M Frame 2.0 Matte Black Frame with Grey Lens ESS CDI MAX Sunglasses Rx compatibility

Rx compatibility

The lens is contoured in three dimensions to match the curvature of the eye

Engineered to withstand extreme heat

MIL SPEC MIL-PRF-32432

including multi-focal lenses

Oakley SI Industrial M Frame 2.0 Matte Black Frame with Grey Lens ESS CDI MAX Sunglasses Rx compatibilityIntroduced in 2006, the tough Oakley SI Standard Issue M Frame 2. 0 Industrial Tactical Sunglasses were designed more for battle than for beauty. The most obvious change from the regular M Frame is the thicker, more rugged frame. The wide elbows past the temple hinge were brought in to better accommodate helmets or other headgear, but the temples also became stronger, opting for a more vertical profile. The ridges not only enhance the overall