Rear View Sunglasses Safety Glasses Mirror, Anti-Tracking for Biking Sunbathe Outdoor Sports Walking

Fashion design: it is great for walking, biking, sunbathe in the beach and many other outdoor sports. Sunglasses appearance: This safety glasses look like an ordinary pair of sun glasses. High-tech coating: The inside of each end of the lens is coated with a high-tech coating that allows the wearer to see the behind view out of the corner of the eye without having to look back. Multi-functional: when policeman are monitoring a criminal suspect, wearing this glasses can greatly increase the concealment of the monitor and reduce the possibility of being discovered by the criminal suspect. A great novelty gift for your family or friends.