Our stainless steel thermos bottle not only offers a stylish design but also many practical features and environmental aspects: * The bottle is BPA-free, making it a healthy and environmentally friendly choice. It is perfect for daily use, hiking, or other outdoor activities. * Thanks to the double-walled insulation made of Stainless Steel 304, the bottle keeps your drinks warm for up to 15 hours or cold for up to 30 hours. This means you can enjoy your favorite drinks at the right temperature anytime and anywhere. * The thermos is equipped with a scratch-resistant powder coating, making it more resistant to damage and ensuring that it still looks like new even after prolonged use.