Amazon.com.au:Customer reviews: 5BILLION Microfiber Yoga Towel for Yoga Mat - 72" X 24" - Hot Yoga Towel, Bikram Yoga Towel, Ashtanga Yoga Towel - Non Slip, Super Absorbent, Machine Washable, Fast Drying - Free Carry Bag
This towel is really good. I feel it deals with the sweat from a Bikram class well. The price is right. I can't comment on slippage, because Bikram, unlike a Vinyasa class where you do the warriors and chaturanga poses standing on the mat, in Bikram you do it across the mat and our feet aren't on it ... so I don't know for sure about slipping, but I think it would hold up. I'm super happy with it. I bought one and now I'm ordering 2 more so figured I should at least rate it!