Review (4/5): Serviceable and inexpensive!
First of all, I need to be clear-- these are not a luxury item by any means.
They are made of polyester satin of medium quality-- they have a visible weave and are only really smooth to the touch in one direction, following the "grain" of the fabric. The stitching is not the best I've ever seen, and there are some loose threads. They also have what feels like plain old sewing elastic inside, not the thicker, stronger elastic you usually find in hair bands.
That said, they work perfectly well for what I want. I have curly hair that often gets in my way, so I like to gently pull it up on top of my head when I'm at home or doing something. I needed something smoother than cotton that would hold my hair up without destroying the curl pattern. I purchased a real silk scrunchie to that end, but unfortunately it has a crazy strong elastic that just wrecks my curl pattern. These are perfect! They're pretty, softer on my hair than cotton, and the softer, stretchier elastic makes it easy to wrap them around my hair without pulling at the curls.
I don't know how well they're going to hold up long term, but I got five of them for 8 bucks, so I'm not concerned.