leather-and-rubber soleSIZE SUGGESTION - Due to the heel trim design, the size is smaller than regular womens size. We suggest order 1 size up for average & wide foot. If you are half-size foot, please order 1 size up as well.ELABORATE & EXQUISITE DETAIL: The lining on these slippers are made of high-quality, moisture wicking French terry material to help keep your feet warm and dry at all times. These are not just winter slippers, but also great for wearing during summer and autumn.FEATURES ULTIMATE COMFORT: The completely improved insole is constructed with three layers of high-density memory foam and sponge to provide superior comfort, which makes you feel like you're walking on a soft cloud, while the meticulous wool-like knit upper will hold your feet in all the right places and the slightly closed heel design really helps to keep your feet warm.GREAT HOUSE SLIPPERS: These French terry slippers can be worn indoors to eliminate fatigue after a long day at work or keep you company over a pleasant weekend. When you collect the mail or pick up the newspaper in the vicinity of your house, you could also slip them on as outdoor shoesCLASSIC SLIP ON indulges your feet in the feeling of hugging a cute poodle and enhances the comfort in cold weather, hand and machine washable. Classic slip-on loafer shoes design make them the perfect home slippers for all-day wearing and matches well with your loungewear, pajamas, or robes set