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Leakproof Stainless Steel Vacuum Insulated Flask

Discover the ultimate in temperature retention with our premium 18 OZ Stainless Steel Vacuum Insulated Flask, designed for those who demand both style and performance. Perfect for daily commutes or outdoor excursions, this flask ensures your beverages stay hot or cold for hours. For the avid traveler, our Travel Stainless Steel Vacuum Insulated Flask offers a compact, leak-proof design that fits effortlessly into bags and cup holders. Safety is paramount, which is why our BPA Free Stainless Steel Vacuum Insulated Flask guarantees a toxin-free experience, making it ideal for families and health-conscious individuals. Additionally, our rugged Outdoor Stainless Steel Vacuum Insulated Flask is built to withstand harsh conditions, featuring a durable exterior that resists dents and scratches during hikes, camping trips, or beach outings.


The Leakproof Stainless Steel Vacuum Insulated Flask combines cutting-edge technology with user-friendly design to deliver exceptional performance. Constructed from high-grade 304 stainless steel, it provides superior insulation through a double-wall vacuum seal that minimizes heat transfer. This ensures your drinks maintain their desired temperature for extended periods, whether you're enjoying a hot coffee in the morning or a chilled beverage on a sunny afternoon. The flask's leakproof cap features a secure screw-on mechanism with a silicone gasket, preventing spills even when jostled during travel. Its ergonomic shape fits comfortably in hand, while the wide mouth allows for easy filling and cleaning. Below are the detailed specifications presented in a clear, organized format to help you understand its full capabilities.

  • Material: 304 Food-Grade Stainless Steel
  • Capacity: 18 oz (532 ml)
  • Insulation Type: Double-Wall Vacuum
  • Heat Retention: Up to 12 hours for hot liquids
  • Cold Retention: Up to 24 hours for cold beverages
  • Leakproof Design: Screw-on cap with silicone seal
  • BPA-Free: Yes, completely free from harmful chemicals
  • Exterior Finish: Brushed stainless steel with powder coating
  • Weight: 450 grams
  • Dimensions: 8.5 inches height x 3 inches diameter
Feature Specification
Body Material 304 Stainless Steel
Vacuum Insulation Double-Wall
Capacity 18 oz / 532 ml
Hot Retention 12 hours (above 60°C)
Cold Retention 24 hours (below 10°C)
Leakproof Yes, with silicone gasket
BPA-Free 100% Safe
Weight 450 g
Height 8.5 inches
Diameter 3 inches

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