NRS Havoc Livery Helmet 110421 works with the following batteries:

works with the following batteries:

OMS Vertical OMS Ballast System w/ Removable D-ring (2

4 cm) Outer Bladder Material Durable 1680 denier ballistic nylon with SuperFabric® brand technology side panels Inner Bladder Material Heavy-duty

1000 Denier Nylon

NRS Havoc Livery Helmet 110421 works with the following batteries:Product Details The NRS Havoc Helmet is your one size fits most solution to whitewater safety. Our DialFit 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 DialFit system lets you custom fit the Havoc with the simple twist of a knob. Fits head circumference 55 59cm (21. 5" 23"). An adjustable chin strap ensures comfort