About this item ABS safety helmet, Mountain helmet style: without visor for the best vertical vision, Less encumbrance, Light Polyamide cradle: 3 textile bands with 8 fixing points. Thermoformed sweat band. Innovative adjustable ROTOR system : head sizes 53 to 63 cm Sold with 3 point chin strap. Specially designed for working at height. Electrical insulation up to 1 000 V.A.C. or 1 500 V.D.C In order to offer the best range for its customers in terms of quality and cost, Delta Plus ensures quality and manufacturing control of its products whether in their own factories or their partners ›See more product details.