Are these the pots that's mentioned in the title?
http://www.superoots.com/air_intro.htm
Bought 4 of them this year. Found them for the same price as the cloth "air pots", but I had to pay S&H, so the SR-AP's cost me $20 shipped for 4 (6x4 and .8g) but I also bought some nutrients too, since I had to pay for S&H.
Sorry for the terrible picture. There's some cannabis growers who use these, and rave about their effectiveness. Not only are they much more effective, a smaller pot could be used, if space is tight. Some were growing in 5-7g standard HD buckets, and were growing the same size plant in 3g SR-AP containers. (As long as you keep an eye on the moisture level)
Furthermore, and not really important, but they are very "handsome" looking pots when you have a plant in them. Very neat looking pots.
[I hope I don't get in trouble for mentioning the "c" word here..]