100% polyester. 100% recycled polyester. Made from PET plastic bottles. Made of breathable lightweight mesh knitted fabric. 5 cm wide reflective tape around the body and over each shoulder. Velcro® fastening in the front. Conforms to American National Standard ANSI/ISEA 107-2004 & European EN ISO20471:2013 Class 2 : Hi-Vis Orange and Hi-Vis Yellow only.