Whitaker - NRG Riding Helmet 
Sizes 
Medium / Large: 57-60cm
Large / X Large: 58-62cm
New Rider Generation (NRG) Helmet
The NRG helmet has a smooth, matte effect outer with a breathable coolmax lining which is removable and machine washable.The helmet inner shell is made from an EPS foam which is a hard foam designed to absorb shock whilst offering protection.