I'm obsessed with these slippers! For real. My husband and I have tried all types - other wool clogs, puffer/pull, lambswool moccasins, you name it. But nothing compares to it! I can't wait to put them on as soon as I take off my shoes or get out of bed. We live in an old house in Maine with drafts and cold floors. These things keep me warm without breaking a sweat, I'm comfortable with or without socks, they fit my feet perfectly - and I think they'll last a long time! I was concerned about the leather sole and slipping on wood or stairs, but that wasn't a problem at all (and I like that they stay light compared to the rubber-soled models I bought for that reason). I've worn them outside to get mail without damage but I probably won't make it a habit so they last longer. I'm a real 9.5/40 and 40 is perfect. I thought they were too tight when I first got them, but an hour after wearing them they were made for my feet. I love these faded overalls and my husband loves his boot version. You really can't go wrong! I look forward to wearing them all year round. Glerups will forever be my slipper brand!