We married two technologies to make the ultimate head protection love-child. The innovative Dual Shell Integration (DSI) construction combines the lightweight properties of our Zipmold+ and PVC lower shell, with the durability of an ABS top shell. Designed with safety features like EAR (Energy Absorbing Ribs) for greater impact dispersion and Aluminum Shields for added durability. Not your typical hybrid species, the Heist is in a class of its own.