The EVO®3 industrial safety helmet combines a super-tough shell for superior all-day protection in the widest range of environments with the comfort benefits of the Evolution® 3D-Adjustment harness system; stands out with the latest protective technologies and features such as the Evolution® 3D-Adjustment harness system, the Revolution® Wheel Ratchet or the unique Slip Ratchet OneTouch™, which can be adjusted with one hand in one quick movement; non-ventilated version complies with EN 50365 Class 0 10KV standard; this standard applies to electrically insulated helmets used for work under or near live parts in installations not exceeding 1000 V AC or 1500 V DC