50% Polyester, 50% Cotton. Design: Books, Printed, Text. Characters: Mike Wazowski. Hem: Fitted. Neckline: Crew Neck. Cuff: Fitted. Sleeve-Type: Long-Sleeved. Fastening: Pull Over. 100% Officially Licensed. 12-13 Years: 40 in. 3-4 Years: 32 in. 5-6 Years: 34 in. 7-8 Years: 36 in. 9-11 Years: 38 in. Ref: UTBI54674