- UGG's new furry slippers are very popular on Instagram. They are fashionable in winter and are non-slip, wear-resistant and stain-resistant. Wear them to feel the gaze. They have a low-key personality. The styles that are popular on social media will be out of stock. Buy them! Upper: Wool Lining: Wool Sole: Original molded rubber backing Size: 35-39 (custom-made 40 non-returnable),