Product Features

The standout feature of this double wall insulated flask is its durable and leak-proof design, crafted from eco-friendly 304 stainless steel for long-lasting performance. It securely holds beverages without leaks, making it perfect for everyday use.
Designed for convenience, the innovative straw and handle combo allows for easy, direct drinking without removing the cap—ideal for outdoor sports and on-the-go hydration.
With a wide-mouth opening and 750ml/500ml capacity, this flask allows effortless filling, cleaning, and ice cube insertion, ensuring optimal temperature retention for both hot and cold drinks.
Committed to sustainability, this reusable flask insulated helps reduce plastic waste, making it a great choice for eco-conscious individuals and businesses looking for sustainable gift options.
Lightweight and travel-friendly, this double wall insulated flask is optimized for outdoor activities, ensuring easy carrying and reliable hydration throughout your adventures.

The Parameters of the Double Wall Insulated Flask

Material: Internal 304 External 201
Brand: Doyoung
Capacity: 500ml , 750ml
Occasion: Camping,outdoors,sports
Thermal insulation performance: 12-24 hours
Style: With handle, large capacity, straight cup
Stock Color: White, black, pink, purple, blue
Applicable People : Adults
Seasons: All Seasons
Reusability: Reusable
BPA Free: Yes
Color: Custom color accepted
Logo: Custom logo accepted
Packing: Custom packing accepted
Box size: 500ml: 44*44*56cm (50 pieces) . 750ml: 44*44*58cm (50 pieces)
Box weight: 500ml: 19.5KG . 750ml: – 21.5KG

Customizing Options

Logo: Our product support logo printing by silk print, laser print, 3D print, and full print.
Color: We support color customization and if you can offer the Pantone color code.
Mold: We support mold making based on this double wall insulated flask.
Package: We support box customization and also support design a new box for you.

Why Choose Ours Double Wall Insulated Flask

We have our own factory, so we can guarantee good service, quality, price and after-sale service, and can provide OEM / ODM customization services. We have majored in this area for 15 years,with professional sellers and after-sale service team, so we can supply better professional service for you.

By choosing Doyoung®’s stainless steel water bottle, you are investing in a product that combines certified quality, stylish design, affordability, and the benefits of advanced production technology.

To help you better understand our product manufacturing process and factory environment, we have specially created an introduction video of our factory. Through this video, you can see our company’s production process and team size, and learn about our strict quality control and advanced production equipment. Click the link below to watch our factory video and experience our professionalism and dedication:

https://www.youtube.com/watch?v=71UIzaKGGVM

FAQ

Q: What about the double wall insulated flask Sample Policy?
A: Sample fee will be charged, can be returned after placing order.

Q: How long is the sample Lead Time?
A: Factory existing sample: within 2-3 days.
Customized sample:Within 5-7 days.

Q: How long is the production lead time?
A: Less than 10,000pcs, 15-35 days.
More than 10,000pcs, negotiable.

Q: Where is the FOB Port?
A:Regularly our FOB Port is Ningbo or Shanghai. Of course,you can also appoint any China Port.

Q: What is the Payment Term?
A:For TT, our regular payment term is 70% Deposit, balance against copy of shipping documents.
For LC, we only accept Irrevocable At Sight One.