MRF111ID — Clear Frame / Clear Lens MRF121ID — Smoke Frame / Smoke Lens MRF191ID — I/O Frame / I/O Lens... Radians Mirage™ Foam Safety Eyewear is a foam lined safety glass designed to block debris, airborne particles and eye irritants. Sleek, light, comfortable eye protection that uses foam lined vents to filter air for maximum protection.