I've taken up knitting again after a lapse of 35 years, and the number of new fibers and blends is amazing. Bamboo! Soy! I've begun with blends of wool or alpaca and acrylic for hats right now, but the selections at my LYS don't compare to that of acrylics.
I see many different grades and textures of acrylic. The issue I generally have with pure synthetics is that I perspire in them. Have some of the new soft acrylics like Caron Simply Soft overcome that problem, or will I still feel like I'm wearing a plastic sweater?