Very comfortable and warm. They fit slightly better now after several months. I usually wear a size 12 regular Crocs and I first ordered that size. They were way too small, so I returned them (very easy) and ordered size 13, the largest available. At first I couldn't tell the difference in size, they felt exactly the same but have improved a bit with time.<br />Bottom line: They are nice but order two sizes larger than you normally wear.