Buying a yoga/workout mat???

  1. Help! I want to start working out. I bought a yoga tape months ago and still haven't used it! I need a yoga mat - it's too tough to work out on the floor! What should I look for when ordering a yoga mat online? Can anyone point me in the right direction? I want good back support!
  2. Gaiam. com has a selection as does I've bought from both places. Good luck.