Now Hydro Flask is talking some serious hydration and sustenance with this Widemouth 40 ouncer. Not only can you keep your liquids hot and cold (as needed), you can top this up with soup or any other hot meal.
Hydro Flasks are made from 18/8 stainless steel and feature double-wall vacuum insulation. We tried this on a spring day hike. After a 3-hour slog, lunch brought on a still steaming soup. Your hots will stay hot for 12 hours, and your colds will stay cold for 24.
Hydro Flasks are cast from double wall vacuum insulated food grade 18/8 stainless steel, and are BPA-Free as well as resistant to bacteria and odors. For smaller tasks the 18oz Wide Mouth Bottle is a more convenient size. Hydro Flask also makes shorter, stouter flasks really for foods only. On a 90 degree day we filled the 18 with ice water and still had cubes at the end of the day!