With many years of manufacturing experience, the product is safer and guaranteed. Recognized by the people's strength production company.1.4D three-dimensional airbag design. Multiple convection airbags greatly increase decompression. 2.Exquisite seaming durable. Fine workmanship high-quality fabric more wear-resistant. 3.Imported Lycra fabric TPU material. Antibacterial, anti-wrinkle, no ball, good touch and more comfortable. 4.Hollow ventilation holes design. Hollow vent design on the surface, ventilation and heat dissipation. 5.Velcro design on the back. The four corners of the back are designed to fit better and not easy to move.Innovative airbag design is carried out using ergonomic principles. The 4D convection airbag is filled with air. When the airbag is under external pressure, the air inside the airbag can circulate with each other to disperse the pressure to achieve the effects of buffering, shock absorption and decompression. The inner lining is soft and comfortable, suitable for most helmets on the market.