Werx-R Carbon Helmet AIS - Adaptive Impact System RHEON Impact Energy Cells which maximize absorption of low speed linear and rotational impacts, reducing forces transmitted to the brain 12K carbon fiber shell - Produces an extremely lightweight shell with superior penetration resistance Triple Density EPS provides a more progressive response to impact forces Expanded volume EPS - Strategic areas of the helmet have more impact absorbing EPS, more suspension between your head and the ground True Functional Ventilation (TFV) - When in motion air is forced through multiple air intake vents, then passed through aligned vent channels in the EPS and exits out multiple rear exhaust vents Quick Release cheek pads aid in emergency helmet removal CoolMax(R) removable washable and replaceable comfort lining system To help keep your helmet clean and feeling fresh 2 shells with 4 specific EPS for a perfect fit throughout the size range Titanium plated rivets for aesthetics, of course Premium helmet bag included Replacement parts and accessories available