The kids heavy cotton tee is perfect for everyday use. The fabric is 100% cotton for solid colors. Polyester is included for heather-color variants. The shoulders have twill tape for improved durability. The collar is curl resistant due to ribbed knitting. There are no seams along the sides. .: Made with 100%, midweight (5.3 oz/yd² (180 g/m²)), US cotton that feels soft to the touch and a great choice for any season. .: The crew neckline along with the tee's classic fit, deliver a timeless style that is perfect for daily use. .: All t-shirts come with pearlized, tear-away labels for total comfort and a scratch-free experience. .: Made using ethically grown and harvested US cotton. Gildan is also a proud member of the US Cotton Trust Protocol ensuring ethical and sustainable means of production. This blank tee is certified by Oeko-Tex for safety and quality assurance. .: Fabric blends: Heather colors - 50% cotton, 50% polyester, Sport Grey - 90% cotton, 10% polyester.