ChayChaxWomen and Men Fur Lined Clogs Memory Foam Warm Fuzzy Slippers Winter Waterproof Indoor Outdoor Slipper

My wife is usually a size 7. The options are 6-7 or 7.5-8.5. I read some comments that the fleece is a tight fit, so I’m thinking 7.5-8.5, right?

Can these be washed in a washing machine?

How high is the heel on this? I need a shoe to go with a medical boot I have to wear.

Are the liners removable?