I've had sheepskin slippers for years, but never this brand. I couldn't resist trying these as they were on sale at what appeared a bargain price. Tempted to buy a Size bigger as per some reviews but as an experienced sheepskin slipper wearer I suspected this would be a bad move. So, I bought my usual size and as I expected they were tight and uncomfortable. Smugly knowledgeable that they would soon stretch and mound to my feet I kept them on for a couple of days, regularly having to take them off as they were so restricting. My smugness we rewarded! Beautiful fitting on the third day, snug and perfectly moulded to my feet. If I'd got a Size bigger they would be too big now. So, excellent quality, the sheepskin liner is the thickest I've ever encountered. They keep your feet at a perfect temperature in the warm weather and I suspect they will be perfect as well in the winter. You can't beat sheepskin and this brand has just won a new convert!