Our premium Height Endurance Helmet is now available in a vented version for extra air flow. Light comfortable and compact this peak-less helmet is designed to be used when working at heights. Clever features include an ABS shell textile comfort 6 points harness wheel ratchet adjustment size 52-63cm. Technical sweat band and 4 points chin strap (Y style) with a soft rubber chin protector included..CE certified.New style.Vented hard hat.Light and robust.Compatible accessories available.Hi-Visibility colour .6 points textile harness.Chin strap included.Specially designed for working at height.7 years shelf life from manufacturing date outlined in product user sheet.Compatible with PW47 and PS47 clip-on ear muff