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.
Items are bright and colourful, and fit comfortably the one time I tried them on. They would have got a 5 star review had I not then attempted to wash them in a machine I've used for years with no issues, and found the arms and one sock completely unravelled! Hand wash only, maybe? Even though they are reasonably priced, I'd still expect them to be able to survive being cleaned before I wear them out.