We know a good tank when we see one. These are soft, durable, and pre-shrunken for a nice slim fit. Ring-spun cotton is known for being soft and durable. The unique rib knit gives it a little bit of stretch, plus it’s pre-shrunk for a slim fit. Made at a family-owned Mill in Pennsylvania on vintage Italian knitting machines. True to size. Daiane is 5’11 and wearing a size medium. 100% ring-spun cotton.