The sock bun to be exact. There are lots of tutorials on Pintrest (click here to chose one).
My hair is long, but not thick so any time I toss it up it looks like a tiny little thin ball on top of my head. Not exactly the look I'm going for.
Once I realized with the use of a sock I could create the appearance of a thick bun I was all in.
Check my results:
|From the front|
|From the back. Look how thick and full it looks.|