Hot or cold for longer periods – double-walled vacuum insulation. The thermos keeps drinks warm for up to 6 hours or cold for up to 12 hours. This depends on the type, amount, and temperature of your beverage. 100% leak-proof. Convenient – small opening for easy drinking and pouring. Easy to fill – large opening. Handy – the belt clip serves as a handle. Hygienic – with the handle, the bottle can be turned upside down for drying. Easy to clean – dishwasher safe. Durable – reusable bottle made from long-lasting materials, BPA-free. A more sustainable choice – made from 48% recycled material, 100% recyclable.