
The Stanley Classic Flask uses Char-Vac technology to keep liquids piping hot or icy cold for up to 12 hours making it ideal for wildlife photography and birdwatching. Constructed in 100% stainless steel, the flask is durable, rust-proof . The wide opening can accommodate ice cubes and is easy to clean, and the flask also features an easy-pour stopper and heavy-duty handle which folds flat. Stanley Lifetime Thermal warranty.