Our best seller Expertbase Safety Helmet is now available with wheel ratchet adjustment size 55-62cm. High-density polypropylene shell helmet, 4 points textile suspension harness. Soft sweat band included. Spare parts available. Features CE certified CE-CAT III Lateral deformation Compatible with PW42 and PS42 clip-on ear muff Up to 7 years lifetime from manufacturing date (as long as undamaged) Compatible accessories available Electrical properties ( 440Vac) Available in multiple colourways Soft foam sweat band included Size adjustable headband via wheel ratchet system 4-point textile suspension harness for enhanced wearing comfort and safety Electrical insulation up to 1000Vac or 1500Vdc (EN 50365) Unvented helmet shell for safe use with electrical applications Certifications EN 397 -10°C / +50°C, LD, 440V a.c. EN 50365 Class:0 Material Composition Materials: PP,PP - Polypropylene,PE,PE - Polyethylene,Woven Webbing,Nylon We deliver Portwest PS57 Expertbase Wheel Safety Helmet worldwide.We specialise in shipping almost anywhere in the world securely at competitive prices - across UK, US, Canada, Ireland, New Zealand, Europe - securely and fast at competitive prices