Duke Helmets

DK-400M-M

Duke DK-400M-M Matte Black Motorcycle Half Helmet

Helmets

Meets or exceeds DOT FMVSS-218 motorcycle helmet safety standards
Aerodynamic shell design constructed using advanced lightweight composite poly-alloy

To choose your correct size, please measure the circumference of your head 1" above your eyebrows around your head and refer to the following size guide. Small = 22 - 22 7/16 | Medium = 22 13/16 - 23 1/4 | Large = 23 5/8 - 24 | X-Large = 24 3/8 - 24 13/16 | 2X-Large = 25 3/16 - 25 5/8

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