This is a cup that is made to meet whatever elements you find yourself in because it can withstand temperatures up to 300°F (149°C). This is because it’s made of heat-resistant and flexible food-grade silicone that collapses to a compact size for easy packing. As an added benefit, the handy carabiner lets you clip it to your backpack or gear and it is dishwasher and microwave safe. The protective carrying case keeps the cup clean and free of debris. It will hold 5.5 fl. oz.