Solid colors are 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: 4.2 oz/y² (142 g/m²) Pre-shrunk fabric 30 singles Side-seamed construction Tear-away label