KASTWAVEWomen's Cozy Plush Fuzzy Socks - Slip-Resistant, Soft, Warm, and Perfect for Winter Sleep

I wear 9.5US and have pretty big calf muscles, but these socks still fit well. Feels comfy, and not too thick that it might mess up your shoe fit.One thing to note is that, I got them in all yellows/white rather than an assortment of colours - not a deal breaker for me, but something to keep in mind.