This soft, cozy sweatshirt is a 50% cotton and 50% polyester blend for solid colors and heather sport colors are 60% polyester, 40% cotton. The collar is ribbed knit, so it retains its shape even after washing. There are no itchy side seams on this sweatshirt and it has a tear-away tag. It is also made using 100% ethically grown US cotton and the manufacturer, Gildan, is also a proud member of the US Cotton Trust Protocol ensuring ethical and sustainable means of production. The blank tee's dyes are OEKO-TEX-certified dyes with low environmental impact. See sizing chart for a proper fit.