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.
I was really disappointed with these boots and unfortunately ran out of time to return. The hole where you put your foot in was just way too small. They were bought for a festival, so had to buy another brand. Would not recommend