Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
If you're looking for no-show socks like they're advertised you may be disappointed because if you look at the photo you could argue they're bordering on ankle socks. However, I knew that before purchase as I prefer socks to go past where the shoe finishes on the heel for protection. These are thin, breathable and comfortable socks which are great for running in a hot climate. Would happily purchase again.