1. Ergonomic design, comfortable to wear
2. Easy to install, stable and not easy to fall off
3. Thin and light breathable net, enhance the breathable effect, comfortable to wear
4. Using sponge, more comfortable to wear, not easy to deformation
5. Good elasticity, soft leather, good breathability
6. Material: imitation protein leather, velvet cloth
7. Single size: about 6cm
8. Single weight: about 8g