The Gap website says "hand wash." It's 50% cotton, 20% alpaca, 20% wool and 10% nylon. I've seen it IRL, but I can never tell if a "hand wash" item can go in the washer.
I let "hand wash" items toss around in the gentle cycle, however I take them out before they get to the spin cycle. That seems to be where the clothes get ruined in my machine.