100% polyester. Anti-pill fleece fabric with warm jersey lining. Self fabric lined stand-up collar. 1/4 zipper with self-matching colour trim. Ribbed cuffs and waistband. Two 5 cm width reflective tapes around body & arms, one over each shoulder. Twin needle stitching throughout. Conforms to EN ISO20471:2013 Class 3 & Orange also compliant to railway industry standard GO/RT 3279.