Skid Lid Helmets Original Hell on Wheels Helmet , Helmet Type: Half Helmets, Helmet Category: Street, Distinct Name: Hell On Wheels, Primary Color: Black, Size: Md, Gender: Mens/Unisex 646964 Contoured helmet with a low-profile fit Clean, minimalist styling Thermoplastic alloy injected shell Retention straps with D-rings DOT FMVSS 218 Certified