The Oakley SI Ballistic Det Cord Rectangle Non Polarized Sunglasses in Desert Tan/Grey are a premium choice for those needing high-performance eyewear. Engineered with O Matter™ frame material, these sunglasses feature comms compatible ear stems and a rubberized unobtanium nosepiece for a secure fit. Lens dimensions include a width of 60.8 mm, height of 41.3 mm, with a frame width of 130 mm, ensuring a comfortable size M fit. These sunglasses meet MIL PRF32432 and ANSI Z87.1 standards, offering robust impact protection, all while maintaining Oakley's signature style.