If you, like I, take a 11.5 in a
dress or casual shoe, and a 12 in a
running shoe, then get a 12 in these
slippers. The good news: They have a nice soft faux-sherpa lining, they are a decent suede leather that one would find on a desert boot that will relax very quickly overall, they have a good rubber sole that's thick enough to walk a block outdoors, or even a trip to the store in wet weather, and when paired with
jeans or cords they function fashionably as a casual moc-shoe (no one will know they are really
slippers). That said, the one drawback, I'm probably overly picky, is that they are not perfectly even in their cut and stitch. What I mean by this is that when you place them side by side the moc-stitch-line on top may appear more wide on one more than the other, thus they don't perfectly match. I requested three pairs to settle on one. Another plus is that the real rubber sole is hand stitched to the upper. I reside in Oregon and have tromped through the rain in my final selected pair and can clearly see that they will be around for next year's Winter season. I recommend these. Happy Holidays!