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.
Not good. For women they make some nice looking shoes, but for men you look ridiculous. Didn’t keep my feet dry either as they are too low. Made me feel like a Danish school boy on my way to boarding school. Couldn’t do it.