The Gildan Youth Heavy Cotton Long-Sleeve T-Shirt promises durability and comfort. 
 
5.3 oz., 100% preshrunk cotton
Ash Grey is 99% cotton, 1% polyester
Sport Grey is 90% cotton, 10% polyester
Double-needle stitching throughout
Taped shoulder-to-shoulder
Seamless rib at neck
Ribbed cuffs