Solid colors: 80% Cotton, 20% Polyester; Heather Grey: 75% Cotton, 25% Poly; Dark Heather: 50% Cotton, 50% Polyester Imported National Championship Victory design. Officially Licensed Michigan Wolverines 2023 College Football Playoff National Champions apparel. The soft material and digitally printed logo make this a great addition to any Michigan fan’s apparel collection! Celebrate a great football season for the Michigan Wolverines with this 2023 CFP National Champs apparel. 8.5 oz, Classic fit, Twill-taped neck