Black Monster is very comfortable eyewear. and it maintains its own shape. It is made by Ultraflex. Ultraflex material is flexible and strong. It does not break easily under any circumstances and maintains its elasticity. It is so light that it causes the illusion of not wearing. Spring nose pads are comfortable and steady. It fits all the nose types. It is our own technology. We obtain the design patent through many failures. Germany Nano coating is eco-friendly and differentiated. The coating Builds surface protection and making many metallic colors. Through this, we are pursuing sustainability. It's not overly flashy and exaggerated glasses that pass like fashion trend. Black Monster is constant glasses. Even if using everyday.