Product details:

The NRS Havoc Livery Helmet is your one size fits most solution to whitewater safety. NRS's dial-fit system lets you quickly and easily adjust the fit to accommodate almost any head size. Protect nearly any adult with the same helmet. No more mixing and matching. The ratchet-adjust-dial-fit-system lets you custom fit the Havoc Livery with a simple twist of the knob. The helmet fits a range from 20.86" to 24.4" (53cm to 62cm) and an adjustable chin strap ensures comfort and security. The NRS Havoc Livery Helmet has plush fit pads in key contact points that provide extra comfort. The helmets fit pads are fixed so they won't get lost and if damaged they are easy to replace. The Havoc Livery has ten ventilation/drainage ports that let air in and water out. The ABS plastic shell is lightweight and durable, and the glued-in EVA foam liner offers excellent impact protection. This helmet meets CE 1385 standards for whitewater safety. Helmet is available in multiple color choices.Meets CE 1385 standards for whitewater safety
DialFit system allows custom and comfortable fit
Adjustable chin strap ensures comfort and security
Plush FIT pads in key contact points provide extra comfort
FIT pads are fixed, and easily replaceable