I ended up getting the child's size (although I have the adult's in another pattern and it works great because I have a large head) because the adult size was already sold out. I love it! It is so cute and the pattern is so fun. You can't really tell from the photos, but there are tiny electrons! I extended the elastic on the children's and it works just fine. These are super cute and high quality headbands!

I agree with other reviews. This runs really large. It doesn’t stay on my head without bobby-pins, which defeats the purpose. I will likely stitch it at some point. It’s cute though!

I wish it would stay better or be adjustable, it keeps falling off because it is just a little too big.

This looks super cute on and doesn't give headband headaches.

Honestly, I bought this to tip me over $100 and get free shipping. I am so glad I did! I'm giving it to a friend as a surprise gift, and I know she will love it! The material is very soft and the pattern is scientific AND stylish. I have very silky hair, so it slid off my head pretty easily. Headbands never work on me, and I've come to accept that. I know this will work great on my friends thick and wavy hair though!