Leak-proof and vacuum-insulated thermo drinking bottle. The Sigg Thermo Drinking Bottle Gemstone IBT is the ideal companion for all leisure activities, school, or the office. Its handy and functional design is elegantly complemented by the subtle black color. Thanks to its top-quality double-wall insulation, the thermo bottle is well-suited for various hot beverages, keeping them reliably warm for up to 12 hours and cold for up to 20 hours. Additionally, the practical screw cap ensures a tight seal at all times, making the drinking bottle guaranteed leak-proof. Made from high-quality 18/8 stainless steel, the thermo bottle is robust, and for a longer lifespan, hand washing is recommended. Thanks to the ultra-thin inner body, it is also lighter and smaller than comparable thermo bottles. The drinking bottle is made from food-safe materials and contains no harmful substances, including phthalates or estrogen-active substances.