The original “BCG” (Birth Control Glasses), a military-issued design known for its rugged durability and unmistakable look. The S9 features a thick, impact-resistant plastic frame in a classic brown finish, built for long-term, no-nonsense wear. Designed and manufactured by Rochester Optical, a long-standing supplier of U.S. military-issued eyewear. Base price includes CR-39 plastic single vision prescription lenses. Available in multiple sizes for a precise fit. Contact Customer Care for additional sizing options. Frame of Choice is a retail brand of Rochester Optical.