These are the best headbands I’ve ever bought! They’re comfortable and hold my hair very well, and I have med thick/coarse hair. I can even wear one under a knit hat/beanie, and I won’t feel the teeth digging into my scalp.The teeth are flexible so it’s easy to adjust them depending on what kind of hold I need. You can also bend them to suit different parts of the head, for example: I like the teeth flatter on the sides and pointing down on top.I’ve been wearing the same 2 for a couple of weeks, maybe longer, and the ribbon wrappings have not come undone or unraveled even a little, which I expected them to do from some of the reviews. I wear the same one all day and switch to a second when my hair is dirty on other days.These are absolutely awesome considering the price. I do wonder how much the person hand wrapping the ribbon gets paid, and their working conditions. This world is incredibly flawed. I’m poor, so I buy cheap things made by people who are suffering even more. Think about that when you see billionaires flaunting their space dikships.