How Are Travel Mugs Leak Proof?
Travel mugs are designed to be leak-proof through various features. They have a double-wall construction that creates an insulated air space, preventing heat transfer and sweating. Additionally, lids typically have a silicone or rubber gasket that forms a tight seal between the lid and the mug. Some mugs also have a locking mechanism or sliding switch to prevent accidental spillages. These features combined ensure that liquids stay securely in the travel mug, even when jostled or turned upside down.