Thermos Funtainer Water Bottle

The Thermos vacuum insulation technology is rated to keep beverages cold for up to 12 hours. For the best results, we recommend using chilled water or adding a few ice cubes before sealing the lid.

Yes, the silicone straw is removable, which makes it straightforward to clean with a straw brush. While the straw is durable, it is designed to be taken apart for thorough sanitation, ensuring no mold or buildup hides inside.

No, the double-wall stainless steel construction is sweat-proof. The exterior remains dry regardless of the temperature difference between the liquid inside and the air outside, so you won't need to worry about condensation rings on tables or inside backpacks.

While the stainless steel body is durable, we recommend hand-washing the bottle to preserve the longevity of the graphic design and the vacuum seal. The lid and straw components can generally be placed on the top rack of a dishwasher, but hand-washing is the safest bet for long-term use.

The push-button lid is designed to be secure when closed properly, making it suitable for transport in a backpack or lunchbox. However, it is not a 100% leak-proof seal if the bottle is tossed around aggressively or left upside down for extended periods, so it's best to keep it upright when possible.

This specific model is designed for cold beverages only. Using hot liquids with a straw-style lid poses a significant burn risk to children, so it should be strictly reserved for water, juice, or other cold drinks.