24h Insulated Flask

When it comes to reliable temperature retention for your beverages, an Insulated Flask is the ultimate choice for everyday adventures. Our high-performance models, like the convenient 750ml Insulated Flask perfect for personal use, or the larger capacity 1.5L Insulated Flask ideal for sharing, are engineered to meet diverse needs. Crafted with premium Stainless Insulated Flask materials, these flasks offer superior durability and are designed to keep your drinks hot or cold for extended periods.


The 24h Insulated Flask is meticulously constructed with double-wall vacuum insulation technology. This advanced system creates an airless space between the inner and outer walls, drastically reducing heat transfer through conduction or convection. The result is exceptional thermal performance, ensuring your coffee stays piping hot for your morning commute or your iced water remains refreshingly cool during a summer hike. The outer body is made from rugged, food-grade 18/8 stainless steel, which is highly resistant to corrosion, rust, and odors. A durable, BPA-free plastic cap with a secure screw-on lid and a leak-proof silicone seal guarantees that your flask can be tossed into a bag without any worries of spills. The sleek, streamlined design is not only aesthetically pleasing but also ergonomically shaped for a comfortable grip.

  • Capacity: Available in 750ml and 1.5L sizes.
  • Material: 18/8 Food-Grade Stainless Steel (Inner & Outer Wall).
  • Insulation: Double-Wall Vacuum Insulation.
  • Temperature Retention: Keeps liquids hot for up to 24 hours and cold for up to 36 hours.
  • Lid Material: BPA-Free Plastic with Silicone Seal.
  • Dimensions (750ml): Height: 9.5 inches, Diameter: 3 inches.
  • Dimensions (1.5L): Height: 11.5 inches, Diameter: 3.5 inches.
  • Weight (Empty, 750ml): 450 grams.
  • Weight (Empty, 1.5L): 650 grams.
Feature 750ml Insulated Flask 1.5L Insulated Flask
Best For Individual Use, Commuting, Day Trips Sharing, Sports, Picnics, Long Outings
Hot Retention (≥65°C) 24 Hours 24 Hours
Cold Retention (≤10°C) 36 Hours 36 Hours
Warranty 5-Year Limited Warranty

Hot Products

  • Starbucks Style Coffee Mug

    Starbucks Style Coffee Mug

    Start 2026 with the Kudike Starbucks style coffee mug collection - including other types of thermos cups, cold drink cups, and mugs in the store, allowing you to celebrate a wonderful winter time with everything from Lunar New Year and Valentine's Day to daily coffee ceremonies. We are able to solve over 98% of technical challenges. By collaborating with us, we can provide you with valuable sales advice in the industry, help you choose suitable popular products, and capture the market.
  • Stainless Steel Glass Cup

    Stainless Steel Glass Cup

    Kudike brand stainless steel glass cup , the stainless steel cup with glass insert with double wall insulated .
    We are the factory of stainless steel water bottle ,and we are the leader in water bottle industry who have more than 12 years experience .
    We hope we can cooperation with our mutual benefits in the days to come through our high quality and new development water bottles.
  • Vacuum Insulated Bottle

    Vacuum Insulated Bottle

    Kudike durable 17 oz vacuum insulated bottle looks very energetic because it uses dopamine color scheme to help you fully display your vitality. Suitable for those who pursue bold style and enjoy convenience, it features an innovative sports bottle cap that allows you to easily drink with one hand, ensuring that no water leaks when tilted. You can use the included stainless steel straw to sip or drink directly without spilling, avoiding awkward moments.
  • 40oz Insulated Cold Handle 304 Stainless Steel Custom Tumbler

    40oz Insulated Cold Handle 304 Stainless Steel Custom Tumbler

    Kudike is the factory of 40oz Insulated Cold Handle 304 Stainless Steel Custom Tumbler, we are the factory specializing in the production of stainless steel tumbler. The company was established in 2017 and has grown from a group of energetic young people to the present. It now covers an area of 12,000 square meters. Every year, it innovates its stainless steel insulated cups and has over 90 types of cups.
    We keep our quality control , fast delivery speed, best serve.
    Hope we have chance to cooperation with you.
    Inquiry us with your order details ,we will feedback in 24 hours .
  • Water Bottle with Storage Compartment

    Water Bottle with Storage Compartment

    Manufacturer of stainless steel water bottle with storage compartment ,loaction in yongkang city,china.
    We production high new and high quality water bottle .
    We accept OEM and ODM.
    Welcome to contact us to talk more.
  • Reusable Waterproof Insulated Water Bottle

    Reusable Waterproof Insulated Water Bottle

    Kudike 260ml reusable waterproof insulated water bottle, easy put into your pocket.
    We are the manufacturer of stainless steel vacuum insulated pocket bottle, we are production high quality stainless steel to reduce the plastic contamination.
    Hope to hear your new for long time cooperation.

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