Made of borosilicate, a type of glass used by laboratories for its thermal shock resistance, these cold beverage tumblers can handle the chill from your frostiest refreshments. Clearly…they get points for style too.
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 analyzes reviews to verify trustworthiness.
