To answer the question that I know is in your head: Yes, the back has a matching butt vortex. 
breathnaigh:

Gramicci CROTCH VORTEX tie dye shorts at Gentry via doubleu doubleu.

To answer the question that I know is in your head: Yes, the back has a matching butt vortex

breathnaigh:

Gramicci CROTCH VORTEX tie dye shorts at Gentry via doubleu doubleu.