Specify: 1. lens all use the import polycarbonate (POLYCARBONATE) material exquisite strengthening. 2. kinesiology design, the non-hardware, causes the field of vision to be more open, to wear is safer, is comfortable. 3. multistage types, the user friendly may adjust the mirror leg to be possible to act according to about individual facial features, around adjust at will 4. specialized guards against fog processing, the temperature difference influence, especially is not suited slightly the day cold area use. 5. flanks and the eyebrow bank or ridge between fields design, may effectively prevent the pellet, the grit and the dust which the side flies 6. unique mercury strengthening coating, can obstruct UVA and UVB effectively and so on the harmful light. 8. many kinds of frame colors and the piece color choice, meets the different need: