K-Efficient Insulated Vacuum Flask – 24-Hour Temperature Retention 1.85L

Keep your drinks hot or cold all day long with the K-Efficient Insulated Vacuum Flask. Designed with advanced K-efficient insulation technology, it maintains your beverage’s temperature for up to 24 hours. Crafted from high-quality stainless steel, this thermos is durable, leak-proof, and easy to carry—making it perfect for travel, work, or outdoor activities.