100% Recycled Polyester. Fabric: Knitted, Piqué. Design: Plain, Ribbed. Neckline: Crew Neck, Ribbed. Sleeve-Type: Short-Sleeved. Side Seams, Tearaway Label, Twin Needle Stitching. 130gsm. Sustainability: ACCORD, Amfori, BSCI, Fair Wear Approved, Made from Recycled Materials, PETA-Approved Vegan, REACH, Sustainable Apparel Coalition.