Guess what these chairs are made from?

I"m hoping Toronto based designers  Ryan Allen, Samreet Bal, and Andrea Hardcastle are able to go into production with the rebound chair  because I think they would sell quite well. Made out of  reclaimed inner tubes, the chair only weighs about 15lbs but can seat a person of any stature quite comfortably.

A corseted back and a woven seat make these chairs aesthetically pleasing, I'd love to see them on my patio. They are definitely not a disposable piece of furniture and they store easily by stacking, what more could you want.