neo wrote:There is it two kinds.
There are more than two kinds

But you are right

The luxery collection has usual 50% cotton 50% Polyurethane, these are the old ones and the best ones

The "cheaper" ones are made of 68% PVC 21% Polyester 11% Polyurethane, these are the newer ones and btw. i dont like them

But there are some more different materials

Style Yakima and Style Nick seems to be the best ones, made of 75% Cotton 25% Polyurethane
The most popular Style Oneway is from really bad quality: 52% Polyurethane 46% Polyester 2% Elasthan
the one where i still looking for the name
http://forum.sixty-planet.com/viewtopic.php?f=6&t=551 is made of 60% PVC 37% Polyester 3% Polyurethane
maybe there are other material mixes around

regards