The EVO®5 Olympus® safety helmet combines a super strong ABS shell designed for superior all day protection with the comfort benefits of the Evolution® 3D-Adjustment™ harness system. Textile Harness A 6 point Terylene cradle harness system & Egyptian cotton Chamlon™ sweat band offers unrivalled comfort. 3D adjustment offers 1-2-3 point harness depth settings for a perfect fit. Revolution® Revolution® The Revolution® wheel ratchet has deep nape strap that enables the firmest retention of any helmet, with a simple turn fastening system. Accessories:  Integrated eyeshield EVOspec®  CR2 Reflective  Vented/Unvented  Chinstrap  Protective shield