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.
AWFUL!! Complete waste of money. Bought an XL to wear over a fleece for jogging outside in the winter. Usually wear a medium and couldn't even get this on. Fits like a small youth size. Ive never returned to Amazon but this I will be.