These safety helmets are manufactured to EN397 standard and are CE and UKCA approved. They have a fully adjustable head harness within an impact-tested, high-density polyethylene shell. They come in standard construction site colours to meet the UKs safety helmet colour requirements and are rated zero VAT in the UK. - A safety helmet manufactured to EN397 standard, CE and UKCA approved - Fully adjustable head harness within an impact-tested, high-density polyethylene shell - The orange helmet meets the UK's safety helmet colour requirements for construction site working - This helmet is rated zero VAT in the UK - Size (head circumference): 5363cm - Weight: 0.345kg Manufactured and individually certified to EN397, and CE, UKCA approved.