Brand: BATFOX Model: F-659 Size: M/L Adjustable Material: EPS foaming and PC shell Net weight: 362.7g Package weight: 450g Applications: Road and mountain ride. Style: Bike helmet for adults Certification: CE Air vents: 8 - 15 Color options: Black, white, red, blue, green, orange, titanium Features: Breathable, safety protection, ultralight design Bonus: Integrated mold technology for added durability.

Size: 

Head: 22-24.4in

Inner: 7x8.7in

Outside: 8x8.3x13in