The sizes should be similar, but please keep in mind that everyone's head is shaped differently.
The D.O.T. Helmets come with D-Rings. The Novelty Iems come with our custom made Quick Releases.
Most of the D.O.T. Helmets and Novelty Items are made of polycarbonate plastic with the exception of a few models and sizes. The Carbon Fiber models are made of Carbon Fiber which is a composite material. The Chrome is made of a polycarbonate plastic shell triple coated with metal.
Tubular nylon, heat shrunk for strength.
Visors come with the D.O.T. helmets shown with a visor but all visors for novelty items are sold separately.