These run small, so order a size or two up. I normally wear a 10, 10.5 or 11. I ordered the XX-Large and they're perfect. Very plush, warm and cozy, and the rubber soles are flexible yet sturdy enough to wear outdoors. The extreme plushness under the foot does get compressed after awhile, but that's to be expected. I will definitely order these again. The seller needs to fix the photo, though. These are suede/plush scuff slippers, not white sandals like in the picture.