Anti-reflective coating on the back of the lens The feature of the polarized semi-mirror is that the front of the lens has a polarization function that suppresses diffuse reflection, and the back of the lens has a non-reflective coating, so when the sun is behind it, it blocks the light reflected on the back of the lens and suppresses glare. This means that for skiing, snowboarding, and other performance on snow, it is useful for controlling the glare behind you. Ultra-lightweight ultra-soft sports sunglasses "ChangeMaster" It is characterized by its lightness of only 14g and the flexibility to return to its original state without cracking even if you squeeze it tightly or squeeze the frame. The lightness reduces the burden of weight when wearing, the softness reduces the feeling of pressure, and the elasticity fits gently according to the size of the head. It does not slip easily even with sweat, sebum, and strenuous movements, so you can feel comfortable wearing it even when you are in sports with intense movement or wearing it for a long time. The nose pads are softly processed to make them soft and scar-resistant. Since the frame and lens are not fixed and no metal is used at the joints of the frame, it moves softly and is durable.