KASK Zenith X2 Safety Helmet-Type II-Class EMATERIAL EXTERNAL SHELL: HD Polypropylene INTERNAL SHELL: HD Expanded Polystyrene HEADBAND: Soft PA Nylon Weight 470 g 1. 04 lb Product Code WHE00097 201 standards ANSI Z89. 1 Type I , Type II Class E All around protection against impact and penetration including front, rear, and sides. EN 12492 Protection against side, front and rear impacts Shock energy absorption capacity (Clauses 4. 2. 1. 2 front, 4. 2. 1. 3 lateral, 4. 2. 1. 4 rear) Penetration