• 100% airlume combed ring-spun cotton • Heather colors are 52% combed and ring-spun cotton, 48% polyester • Athletic Heather and Black Heather are 90% combed and ring-spun cotton, 10% polyester • Fabric weight: 4.2 oz./yd.² (142.4 g/m²) • 32 singles • Regular fit • Side-seamed construction • Crew neck • Cover-stitched collar • 2″ (5 cm) ribbed cuffs Age restrictions: For adults EU Warranty: 2 years Other compliance information: Meets the flammability level requirements. In compliance with the General Product Safety Regulation (GPSR), Más 54 ensures that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact us at mas54ie@gmail.com or write to us al +353 87 483 9021.