Multi- Sports Helmet with Hd Circumference Lightweight Design Thickened Foam for Multi-Scenario Riding Use

Thickened Foam: 20MM thickness with high-density foaming, providing shock absorption and resilience for safe sports. Magnetized Buckle & Liner: sy-to-install magnetized buckle, liner with thickened pad for comfortable and brthable wr.

Hd Circumference: Freely to fit different hd sizes, ensuring a more comfortable wring experience. Material: PC Sheet + Foam +   Buckle: Magnetized Buckle Liner: Detachable   Size: Approx. 22.5*22.5*38cm/8.9*8.9*15.0in (External) ; 16.5cm/6.5in x 25cm/9.8in (Internal) Weight: Approx. 560g/19.8oz