100% Polyester. Fabric: Birdseye. Design: Contrast Detail, Reflective. Neckline: Ribbed, Turn Down Collar. Sleeve-Type: Short-Sleeved. Hem: Side Vents, Twin Needle Stitch. Fabric Technology: Lightweight. 1 Spare Button, 3 Button Placket, High-Vis, Side Seams, Twin Needle Shoulder, Twin Needle Sleeves. Conforms to Safety Standard: EN ISO 20471:2013 A1:2016. 150gsm. Sustainability: Amfori, BSCI. Ref: UTRW9498