leakproof small mouth flask

When searching for a reliable and durable liquid container, the choice often comes down to the stainless steel small mouth flask. This design is not only robust but also ensures your beverages maintain their intended temperature for hours. For those who require exceptional thermal performance, the insulated small mouth flask is engineered with advanced vacuum technology, making it perfect for both hot coffee on a chilly morning and a cold drink during a summer hike. If you need a specific capacity, the 1 liter small mouth flask offers an ideal volume for all-day hydration without being overly bulky. Its design is particularly suited for people on the go, and the travel small mouth flask variant often includes features like a compact form factor and a secure, leak-proof cap, making it an indispensable companion for any journey.


The Guardian Flask is meticulously crafted with a focus on performance and user convenience. Its small mouth opening is designed for controlled pouring, minimizing spills and making it easy to drink from directly. The flask's body is constructed from high-grade 18/8 stainless steel, which is resistant to rust and odors. A key feature is the double-wall vacuum insulation, which can keep liquids hot for up to 12 hours or cold for up to 24 hours. The screw-on lid incorporates a silicone gasket to create a perfect seal, guaranteeing that the contents remain securely inside even when the flask is jostled in a backpack. The exterior features a powder-coated finish for a comfortable, non-slip grip. We have provided the detailed specifications below in both a list and a table for a clear overview.

  • Material: 18/8 Food-Grade Stainless Steel
  • Capacity: 1 Liter (33.8 fl oz)
  • Insulation: Double-Wall Vacuum
  • Heat Retention: Up to 12 Hours
  • Cold Retention: Up to 24 Hours
  • Lid: Screw-On with Silicone Gasket
  • Height: 10.5 inches (26.7 cm)
  • Diameter: 3.2 inches (8.1 cm)
  • Weight: 14.5 oz (411 g)
  • Finish: Matte Powder Coat
Specification Detail
Primary Material 18/8 Stainless Steel
Total Capacity 1 Liter
Insulation Type Double-Wall Vacuum
Hot Retention (95°C+) 12 Hours
Cold Retention (0-4°C) 24 Hours
Lid Mechanism Screw Top with Silicone Seal
Product Height 10.5 inches / 26.7 cm
Product Diameter 3.2 inches / 8.1 cm
Empty Weight 14.5 oz / 411 g
Exterior Coating Matte Powder Coat

Hot Products

  • Carton Bottle

    Carton Bottle

    Kudike's stainless steel Carton bottle is very durable and can accompany you for a lifetime when used properly. These double-layer insulated water bottles are made of 316 stainless steel inside and 201 stainless steel outside, making them lighter than other similar water bottles and the most portable water bottles for travel, hiking, and sports. The wide mouth design also makes cleaning super convenient, reducing trouble for your busy day!
  • 20 oz Mug with Handle

    20 oz Mug with Handle

    Kudike is a stainless steel mug brand, which is in the stainless steel bottle industry.
    The 20 oz mug with handle is the newest item in the 2024 year.
    Our factory main production high quality stainless steel mug, we accept OEM and ODM.
    Look forward to hear your inquiry.
  • Insulated Travel Mugs

    Insulated Travel Mugs

    How would you like to drink coffee, water, or other beverages? Using Kudike's classic and fashion insulated travel mugs, your drinks can stay warm for longer, making them perfect for both morning commutes and weekend leisurely strolls. Paired with a classic water bottle, it can replenish moisture anytime, suitable for both hot and cold drinks. Do you want a more fashionable style? The second generation coffee cups bring modern design while maintaining the same reliable performance.
  • Stainless Steel Flask

    Stainless Steel Flask

    Kudike is the manufacturer of stainless steel flask factory. This flask have different capacity: 350ml, 500ml, 750ml and 1000ml. The material is food grade -18/8 stainless steel.
    Each details checked by our quality controller.
    It is double wall vacuum insulated flask.
    We have ability to do OEM and ODM, welcome to inquiry us.
  • Stainless Steel Travel Kettle

    Stainless Steel Travel Kettle

    Big capacity for stainless steel travel kettle from Kudike brand belong to Yongkang Jiangzhi Cup Industry Co., Ltd., who is the factory that produces high-quality insulated kettle and water bottle. We are looking for new partner to open up new market.
  • Small Mouth Flask

    Small Mouth Flask

    KudiKe is the factory brand, our factory main production stainless steel small mouth flask.
    The small mouth flask quality is higher than the market .We control the quality in every process. If you are interesting in this products, contact us and let us know your demand, we will quote with our professional.

Send Inquiry

X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept