wide base small mouth flask

A stainless steel small mouth flask offers unparalleled durability and maintains the perfect temperature for your beverages. Our insulated small mouth flask is engineered with advanced vacuum technology to keep drinks hot for up to 12 hours or cold for 24 hours, making it an ideal companion for long commutes and outdoor excursions. Designed for ample capacity, the 1 liter small mouth flask is perfect for all-day hydration without the need for frequent refills. Furthermore, we have prioritized security with our leakproof small mouth flask, featuring a precision-engineered screw-top lid with a silicone gasket to ensure no spills, even when tossed in a bag.


The Wide Base Small Mouth Flask is meticulously crafted to meet the highest standards of performance and convenience. Its wide, stable base prevents tipping, while the small mouth opening allows for controlled pouring and minimizes heat loss. Constructed from premium 18/8 food-grade stainless steel, it guarantees no metallic taste transfer and is resistant to rust and corrosion. The flask's double-wall vacuum insulation is the core of its exceptional thermal retention. Below are the detailed specifications that highlight its superior build and functionality.

  • Material: 18/8 Food-Grade Stainless Steel (Inner & Outer Wall)
  • Capacity: 1 Liter (33.8 fl oz)
  • Insulation: Double-Wall Vacuum Insulation
  • Lid Type: Screw-top with Integrated Silicone Gasket
  • Base Diameter: 85mm (3.35 inches) for enhanced stability
  • Mouth Opening Diameter: 30mm (1.18 inches)
  • Finish: Brushed Stainless Steel, resistant to fingerprints
Feature Performance Specification
Hot Retention Maintains temperature above 60°C (140°F) for 12 hours
Cold Retention Maintains temperature below 10°C (50°F) for 24 hours
Leakproof Performance 100% leakproof when sealed; tested under various angles and pressures
Weight (Empty) 450 grams (0.99 lbs)
Dishwasher Safe Top rack only (lid recommended for hand washing)

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