1. Soft and comfortable, meet the needs of daily wearing, no pressure
2. Good air permeability, not easy to crack
3. Easy to replace
4. Good sound insulation, anti-slip, and elastic
5. Real machine mold opening, in line with ergonomic design
6. Block more sound and improve noise cancellation
7. Thickened and upgraded model, using gray and hemp skin-friendly flannel + PU leather material
