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Leakproof Insulated Flask

Whether you're heading to the office, hitting the gym, or embarking on an outdoor adventure, a reliable vessel for your drinks is essential. An Insulated Flask is the perfect companion, designed to maintain your beverage's ideal temperature for hours. For those who demand long-lasting performance, our advanced 24h Insulated Flask guarantees your coffee stays hot or your water stays cold throughout the entire day and night. We offer a range of sizes to fit every need, from the conveniently portable 750ml Insulated Flask ideal for a personal daily supply, to the high-capacity 1.5L Insulated Flask perfect for sharing on long trips or ensuring you stay hydrated without constant refills.


The Leakproof Insulated Flask is engineered with a focus on durability and user convenience. Its robust construction features high-grade 18/8 stainless steel, ensuring it can withstand the rigors of daily use without denting or corroding. The heart of its performance lies in the double-wall vacuum insulation, which creates a thermal barrier to lock in temperature. This is complemented by a precision-engineered leakproof cap that features a secure silicone seal, guaranteeing no spills even when tossed in a bag. The exterior is finished with a scratch-resistant powder coating, available in a variety of modern colors to suit your personal style.

Key Specifications

  • Material: 18/8 Food-Grade Stainless Steel (Body & Lid)
  • Insulation: Double-Wall Vacuum
  • Capacity Options: 750ml, 1 Liter, 1.5 Liters
  • Leakproof Mechanism: Screw-top Lid with Integrated Silicone Gasket
  • Temperature Retention: Keeps liquids hot for up to 24 hours, cold for up to 36 hours*
  • Exterior Finish: Durable, BPA-Free Powder Coating
  • Compatibility: Most Car Cup Holders (750ml & 1L models)
Feature Description Benefit
Vacuum Insulation Advanced double-wall construction with a vacuum seal. Superior temperature retention for both hot and cold beverages.
Leakproof Cap Threaded lid with a flexible silicone sealing ring. Complete peace of mind; can be carried anywhere without risk of leakage.
Wide Mouth Opening Large 48mm aperture for easy filling and cleaning. Allows for adding ice cubes and simplifies the cleaning process.
Ergonomic Design Contoured body with a non-slip grip. Comfortable and secure to hold, even with wet or cold hands.
Dishwasher Safe Top-rack dishwasher safe for effortless cleaning. Saves time and effort on maintenance.

*Temperature retention times may vary based on initial liquid temperature, ambient conditions, and flask capacity.

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