Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
Definitely runs on the tight side and is a bit uncomfortable compared to the ones I wore when I was a girl. This is day 1 of me having and wearing it, so maybe I'll adjust to it?? It looks like it will hold up well which is why I chose to buy this one.