What is best material for printing tires?

What is best material for printing tires?
I see a lot of projects printing with NinjaFlex.
Thank you in advance.

@cwx37 ​​ made a beautiful functional tires for his ultra realistic RC lorry from Fillamentum 's Flexfill 92A: http://www.drracer.eu/t130/20160607_pneu/index.html (Czech language, but look at the pictures and videos).

I used some noname cheap TPU which worked very well. However Filaments for our fdm printers are made to have low friction (which is important for extruding). A tire on the other hand needs to have as much friction as possible. So any soft material should work equally nice but the best option are bought tires which fit your rims.

Thank you for replies. I will order some NinjaFlex for the moment. I am about to start Truggy project. As soon I have some results I will post them here.