"Thin" does not necessarily mean "fine". Thin has more to do with how MUCH hair one has vs. the texture, which can be fine, medium, or coarse. Amount of hair can be referred to as thin, average/medium amount, or thick(meaning lots of it, whatever the texture). However, it's very common for people to have thin hair that's also fine in texture. And then there are people who have fine-textured hair but lots of it. My own hair is fine to medium in texture, but so much of it it's virtually enough for 3 heads, a fact that virtually every cutter has remarked upon. It's not consistent in either texture, or curl pattern either. Hope this clarifies!