To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I love this slipper. They are great indoors and out, very warm and great traction on a slippery driveway. Only used them a little over a month since getting them as a Christmas gift, so how long they last is still a question to be answered.