100% Polyester. Fabric: Interlocking. Design: Plain, Textured. Neckline: Crew Neck, Self Fabric. Sleeve-Type: Short-Sleeved. Fabric Technology: Breathable, Lightweight, Moisture Wicking, Quick Dry. Flatlock Stitching, Printed Back Neck Label, Side Seams, Taped Neck, Twin Needle Hem, Twin Needle Sleeves. 160gsm. Sustainability: Oeko-Tex Standard 100 Certified.