Conforms to EN20471:2013 Class 3, EN343:2019 4:4:X and RIS-3279-TOM ISSUE 2 : 2019. Elasticated waist band for comfortable fit. Draw cord for fully adjustable fit when wearing over other layers. Slot openers allow access lower layers. Heat applied hi-vis tape making sure you remain visible even in low lit environments. Zipped ankle openers to allow for easy donning and doffing. GORE-TEX standards of waterproof performance and breathability.