SIZING: Available in size US 5-6 / UK3-4 EU 36-37 / S US 7-8 / UK5-6EU 38-39 / M US 9-10 / UK7-8EU 40-41 / L US 11-12 / UK9-10EU 42-43 / XL .Slipper is narrow in width, if you have wide feet we recommend buying one size up.Please IGNORE the size number at the bottom of the sole. WARM AND COMFORTABLE: Warm and breathable upper with comfortable fluffy lining that gently wraps your feet for extreme warmth and comfort.Eco-friendly thick plush fleece and breathable cotton keeps away from coldness.Fine outer and chic color make these womens slippers lovely ANTI SLIP MEMORY FOAM SOLE: The slipper sole is very soft and has a memory foam which will take care of your feet and provide them with great softness and cushioning to get rid of the bondage.It is non-slip to protect every step of the way,making perfect for indoor and outdoor useDURABLE SOLE: It is handmade and not easy to crack with fine-edged seams,making the slippers very durable and light, without any damage to the floor or noise to peopleCare: Hand and machine washable in cold water gently.Do not use automatic dryer for these womens slippers.Please tell your pet to be friendly with them