If a One K Helmet does not come in your size, you can easily change the liner for a perfect fit.
Our liners also provide ultimate flexibility for growing children, shared helmets, or women who wear hair differently for schooling and show!
- Two shells make up all sizes.
- The base shells for the Defender Pro are Large and X-Large.
- Use the Large size helmet with a Medium, Small, or X-Small liner to change the fit of the Large helmet into a Medium, Small, or X-Small.
- Use the X-Large size helmet with an XX-Large liner to change the fit to XX-Large.
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