30 oz custom tumbler cup, perfect for keeping your drinks hot or cold for hours on end. Made with high-quality stainless steel, this tumbler is durable and reliable for everyday use.  It has a built-in straw with a clip to attach to your person. It can be personalized. Whether you're enjoying your morning coffee or sipping on a refreshing beverage, this tumbler is the perfect for the big beverage drinkers. With its sleek design and customizable options, this tumbler is a must-have for the gym.