This is a wonderful slipper because of the warmth and the cushy insole. My heel did slip a little at first, but I like to wear the sheepskin top flap up and that way it hugs my foot better and slips less. Sheepskin is throughout the inside of the shoe and the outer brown suede is a true color to the picture. The bottom of the slipper is a rubber non-slip sole which makes it easier to run outside or walk on my hard wood floors.  True to size for my small size 5 foot. Wearing these everyday!