keeps hot drinks for 12 hours and cold drinks for 25 hours ideal for use in Mountain, city, beach and indoors. This is the only thermos you will need. It keeps hot drinks for over 12 hours or cold for over 25 - anti-slip, shatterproof - modern and elegant design with a food-grade stainless steel liner, The Corkcicle Canteen does not detract from taste, retains not smells and is easy to clean, making it suitable for switching between coffee, iced water and even more delicate drinks such as wine. It also has a 3-Layer insulation.