• 100% combed and ring-spun cotton • Ash color is 99% combed and ring-spun cotton, 1% polyester • Heather colors are 52% combed and ring-spun cotton, 48% polyester • Athletic and Black Heather are 90% combed and ring-spun cotton, 10% polyester • Heather Prism colors are 99% combed and ring-spun cotton, 1% polyester • Fabric weight: 4.5 oz