Lululemon mats are the best, forget mandukas. Especially if you sweat as much as I do, I can now focus on form and forget about my hands slipping, it has completely changed my practice. I prefer the inversion pants over the looser studio pants, their online store is always low on stock though, and sizing is a crap shoot, best to go to a retail location if you have one nearby.
slightly related: I wish Isaora wasn't so shoddily made, like VSLI my isaora sweats have been chucked after first pilling and then coming apart at the seams. Its pitiful that a company with such great designs can't follow through in the construction.