100% polyester lightweight knit fabric Certified to EN ISO 20471:2013 A1:2016 Class 1: yellow/navy, orange/navy, yellow/black & yellow/royal blue Certified to EN ISO 20471:2013 A1:2016 Class 2: Yellow, Orange, Yellow/Orange Orange colourway also certified to RIS-3279/TOM Centre front full zip 7 Pockets for added storage ID Pocket 2 radio loops D-ring attachment