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.
Served for over a year well for moderate active use. Chose a size bigger than required - and this may have accounted for one sole eventually breaking in half, and the other sole also broke. As it was comfortable for walking and for work, re-ordered another pair.