Tough HDPE shell. A 6-point terylene cradle harness system offers unrivalled comfort without compromising performance. Chamlon™ Sweatband. OneTouch™ Slip Ratchet. Meets the EN 50365 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. Universal Slots. Enables firm fitting of a range of Surefit™ safety visors and ear defenders. Extra large area for logos on the front, sides, and rear. EN397.