Thank you all!!
I bought the hat as a set. I can't remember where I got it. We've had it for awhile. I've got a trunk full of clothes that they never wear, so I haven't added to their collection in quite awhile. The hat has ties that tie under their chin. It's to big for her, so it kinds looks like a hat and scarf. The pink vest that velcros around her neck and chest is a harness made by Pinkaholic.
Thanks again to all for your sweet words!