The shape of ski goggles sale can be divided into two categories: cylindrical mirror and spherical mirror. Cylindrical mirror is more common in the past, while spherical mirror is a relatively new style in the past two years. Spherical mirror is better than cylindrical mirror in several aspects.
1. The field of vision is wide. Since the design of the sphere is more in line with the ergonomic principle, the frame can be further back, which reduces the interference of the frame in the field of vision.
2. The space is larger. Because of the protrusion of the sphere, the space from the lens to the human eye is much larger, which will bring some benefits. The air from the large air vent has enough circulation space
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