One K Defender Helmet Liners

One K Defender Replacement Liner:

The replacement liners provide the ultimate flexibility for growing children, shared helmets or when the hair is worn differently for schooling and competitions.

Use the small size helmet with an xsmall or medium liner to change the fit to XSmall or medium and use the large size helmet with an XLarge or XXLarge liner to change the fit to XLarge or XXLarge.

Features popper studs and mesh ventilation.