Wool is excellent; a fiber God designed to keep critters comfy. I wear it to work, my wife and I wear it on tour. We wash it in the machine on delicate with Woolite, hang dry. We have a hamper that we only use for wool, don't mix it with our other clothing. Used to mix it and figured we'd pick the wool out for special care until a sweater belonging to my wife came out of the wash looking like it belonged to a toddler.