Soft, but not a very smooth surface.
NRG Massage Face Cradle Cover Flannel
I was disappointed to find that the surface of this cover, while soft, is just not very smooth--it has a fairly rough surface. I would not purchase it again nor recommend it, unless you're upgrading from a pillow case or a paper cover. The smoothest ones I've found out of the 5 or 6 brands I've tried over the past 11 years are from Personal Touch. Their cover now costs 50% more than this one, but next time, I'll just spend the extra money to get the smoothest ones.