I've tried many yoga mats and this one is my favorite. It's firm so it's easier to be stable in standing poses, and it also doesn't scrunch up and lose it's shape. At first it was a little slippery when I first got it, but I think many yoga mats are a like that. After a few uses, it was fine. I sweat quite a bit during classes, and I don't slip. Pressing firmly down against this mat with my hands or feet helps a lot with stability when I'm sweating. I used to have a Manduka Black Mat Pro, and I find this one to be so much better. With the Manduka I was sliding all over the place when I would sweat. I also used to have a Jade Professional. The grip/stickiness was awesome with that one, but it also seemed to be too sticky at times because it would pick up everything like dirt and hair off the floor. The Jade also wasn't as stable as the Prana Natural, and Jade also wears down faster than the Prana Natural.