Trisk.- It sounds like the small shak would be the right size for you. I'm usually a medium size in tops in general, and the shak half zip in medium fits me very well. I also have a shak full zip that I often will wear over it like a sweater set, and I purposely got that in large so it fits well over the medium shak.
If you are normally small, the shak in small should fit.
I have washed my shaks quite a few times already on gentle, lukewarm water, in the machine, using Woolite, then dried on LOW dryer setting (with a fabric softener because that's the only thing that really gets the cat hair to come off), and they come out just fine and have not shrunk more than a microscopic amount, nor pilled or anything. Shaks are great.
I agree, the Thistle will go well with your black and gray items, and will look elegant but sporty.![]()