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 have several in size Medium. Ordered Medium because the first one I bought fits well and is Medium. The two others, both Mediums, are 1.25 inches less wide, meaning 2.5 inches less in "girth". They all say Medium, all are Hecho en China. I fear if I order Large, it will be huge.