EVO®3 Industrial Safety Helmet combines a super strong shell for superior all day protection in the widest range of environments, with the comfort benefits of the Evolution® 3D-Adjustment harness system. Packed full of the latest protection technology and features such as the Evolution® 3D-Adjustment harness system, Revolution® Wheel Ratchet or the unique OneTouch™ Slip Ratchet, which can be adjusted using one hand in a single swift movement.