My Girlfriend have knee length black hair. She don't usually take care of it, but got good genetics I guess. The thing is her hair braid circumference is 13 inches!!! That too from top to bottom... It is so shiny, Super silky and smooth too. I absolutely love it when wind strikes it... When she looses her hair, all we can see from behind is like a black shiny curtain to the knees.... It is so dense that it falls all over to the front side of her body....