Abby at FOUND recently started carrying these headbands/wraps. They are EXACTLY what I have been searching for. They are solid colors, making them very easy to wear with plenty of outfits, they're stretchy and comfortable and they are only $12 which is very affordable!
It's easiest to wear these bands if you have medium to long hair, but with the right short style I'm sure they can be worn too:)
I pulled my hair into a messy top bun, and added the band and it's as easy as that:)