Environmentally friendly materials, each material has been carefully selected. More close to the skin, more comfortable to wear.
Plastic steel material, ultra-light, super-elastic. Does not change shape when squeezed.
Reinforced hinge reinforcement hinges, after repeated opening and closing test, opening and closing is still smooth and does not snooze, the frame will not loose.
Ergonomic streamline glasses legs, ears will not clamp the face, wearing very comfortable.