Tough HDPE shell In tests the EVO®3 proved far tougher than the EN397 standard required and far tougher than any of it's competitors. Supreme Comfort A 6-point terylene cradle harness system offers unrivalled comfort without compromising performance. Chamlon™ Sweatband Egyptian cotton core with porous PU coating for maximum sweat absorption. PH neutral, dermatologically tested. 3D Precision Fitting Never before has such a precise fit been attainable on an industrial safety helmet, using the unique 1-2-3 point harness depth settings. Adjustment Revolution® Wheel Ratchet. EVOSpec® The helmet with integral visor ensures that eye protection is on hand when needed and never lost, whilst removing the need for additional eye protection. Protects to EN166.1.F EVOSpec® sold separately Universal Slots Enables firm fitting of a range of Surefit™ safety visors and ear defenders. Branding Extra large area for logos on the front, sides, and rear. Electrical Insulation (Non-vented only) The un-vented version meets EN50365 Class 0 10KV standard. This standard is applicable to electrically insulated helmets used for working live or close to live parts on installations not exceeding 1000Vac or 1500Vdc.