I got one of these from deepcut studios:
http://www.deepcutstudios.com/product/wargames-terrain-mat-stars/
the mousepad version in 6x4 is 54 pounds, and is gorgeous in every way.
The only criticism I have is that after a lot of use, the edges of the mat may start to fray, but I believe this problem could solved by taking it to a seamstress and having the edge hemmed.
I love my deepcut cloth mat, I chose cloth over pcv because I wanted something that I could fold up easily to travel rather than having to roll it up. Here is a review from when I first got it. The intensity of the blacks is certainly less than the pvc but it is still a great mat and has more friction then pvc for sure.