Review title is These run small!  Not recommended for lots of hair. [SEP] I haven't used these yet, but right out of the package, I know that they run small.  These are not for girls/women with a lot of hair.  And I'll just say it:  Or if you have a big head.  Basically, there's a small, thin "plastic like" cap (kinda' like a thinner version of what you know a generic shower cap to be) with an elastic band sewn to a "satiny" cap.  I wasn't expecting "satiny".  I have yet to use them, but just know that they run small.  I only purchased them so that I could shower while heavily conditioning my very fine - and thinning - locks.