Rubber soleFEATURES: These Women??s Fleece lined clogs are super comfy and are designed with an Ultra Comfort Fleece Insole and an ultra soft Terry outer. The embossed Non-Skid outsole provides an easy and safe walk with plenty of Support.ANTI-SKID RUBBER SOLE: Get a grip and don??t slip! A lightweight design and anti-skid rubber sole provides traction so you can wear them anywhere. The non-skid rubber sole also makes them suitable for all types of indoor/outdoor surfaces.HIGH-DENSITY MEMORY FOAM INSOLE: The slippers are lined with a high-density memory foam that molds to the foot and retains the shape ensuring maximum comfort.COLOR AVAILABILITY: Available in two classy colors to suit every woman: Available in Black and Grey.SATISFACTION GUARANTEED: Satisfaction of our customers is our primary concern. If you are not happy with your purchase, feel free to contact us; we will do our best to meet your needs. We offer a 100% money back guarantee on our entire shoe collection, so that you can enjoy a risk-free purchase.