- Vacuum Flask (Nuclear) 4.2L Unbreakable — your ultimate beverage companion. With advanced nuclear insulation technology, this durable flask maintains hot or cold temperatures for up to 12 hours. Its generous 4.2L capacity makes it ideal for outdoor adventures, long trips, and everyday use. Built to last with unbreakable construction, it's the reliable choice for keeping drinks at your preferred temperature wherever you go.
- This flask keeps your beverage or water cold or hot for about 12 hours.