LEAK-PROOF THANKS TO THE LOCK BUTTON Our Miracle Mug is made of double-walled stainless steel and remains hot or cold for hours. Additionally, it is leak-proof, as the liquid inside can only run when a button is pressed. REUSABLE INSTEAD OF SINGLE-USE With the Miracle Mug from SIGG, hot or cold drinks can be conveniently taken from home or filled with fresh coffee or tea in a restaurant. This way you're ready to challenge the end of paper cups! EASY CLEANING, PATENTED DRINKING SYSTEM We have developed a new drinking system to ensure that you do not need too much time for cleaning. The patented system is easy to remove and easy to clean. PRACTICAL AND BPA-FREE The Miracle Mug is odourless, recyclable, and all materials used are free of harmful substances. Our Mug suits most common cupholders. In the size 0.27 L, it even fits under your coffee machine. SIGG - Travel Mug Miracle Black 0.47L