Bell Custom 500 HelmetJust when you thought it couldnt get any better, Bell went back to the labto make improvements to the legendary Custom 500. A new headformmeans the Custom 500 now fits better and looks smaller on your headthan ever. No more bobbleheads. The thin-profile shell allows the Bell Custom 500 helmet to sit lower on the head,and with 5 shell and EPS sizes, its now even easier to find the look youwant with the perfect fit.Note: Customers have found this helmet to run small and recommend sizing up one size from what size chart suggests.Features: 5 shell and EPS liner Expanded polystyrene (EPS) is a rigid, energy absorbing foam. In the helmet industry, EPS is the most common means of energy management to protect the brain. Generic EPS is often referred to as Styrofoam (a trademarked name owned by the Dow Chemical Company). Premium helmet producers utilize multi-density EPS liners to balance comfort, safety and performance. sizes ensure a low profile look Shell 1: XS and SM Helmet Shell 2: MD Helmet Shell 3: LG Helmet Shell 4: XL Helmet Shell 5: 2XL Helmet Integrated 5 snap pattern for aftermarketface shieldsand visors Padded chin strap with D-ring closure and strap keeper Multi Density EPS liner Stainless Steel D-ring closure Leather D-ring pull tab Fiveyear warranty