Machine wash warm on the gentle/delicate cycle and machine dry on low heat. Not having washed it yet, I don't know how it holds up to that. The acrylic is microdenier (aka microfiber) which probably helps with the silky softness.

I will note that like Caron's other yarns it's not spun all that tight so there is some tendency to untwisting and splitting but it's not any worse about it than their other yarns. It's also a cabled yarn, constructed out of six 2-ply yarns, which is handy if you do tiny knitting like I do, I can split the plies and have lots of 2-ply yarn for my BJD knitting. :)