From HistoricallyBlack.net

100% combed ring-spun cotton
30 singles thread weight
Classic semi-contoured silhouette with side seam
Shoulder-to-shoulder taping
Seamed collarette
Double-needle stitched sleeves and bottom hem
Tear away label
Fabric weight: 4.5 oz.
You can't help but feel great in this fashionable, feminine cut, ring-spun tee It's soft, light and will hold up to repeated washings. Made of 100% combed ring-spun cotton, except for heather grey (contains 10% polyester), dark heather grey (65% polyester), heather green (65% polyester), and heather blue (65% polyester).