Custom Thermal Water Flask
As a trusted stainless steel flask manufacturer in China, Haers offers a premium selection of wholesale flasks built for durability and temperature retention.
We support bulk purchasing and specialize in custom solutions tailored to your branding needs. With our OEM and ODM services, you can personalize every detail—from logo engraving and surface finishes to packaging design. Whether you’re sourcing custom flasks for retail, gifts, or promotional use, Haers ensures consistent quality and reliable service with every order.
500ML Insulated Smart Bottle with Magnetic Lid
15oz Smart Water Flask with Hydration Reminder
The Smart water flask has a lightweight 316 stainless steel inner wall and a durable 304 stainless steel outer shell. It keeps drinks hot or cold for up to 12 hours, with customizable surface finishes and water temperature recording. The app provides drinking reminders, health monitoring, and more. It's also IP7X-rated, dust-tight, and waterproof up to 1 meter.
15oz Smart Slim Bottle with LCD display
350ml Smart Tea Cup with Temperature Display
270ml Smart Tumbler with Temperature Indicator
15oz Stainless Steel Smart Bottle with Fingerprint lock
This 304 stainless steel smart bottle has double layer vacuum insulation keeping drinks hot or cold for up to 12 hours. It features fingerprint unlock technology with an innovative locking lid rotating freely when secured and opening via verification for one touch convenience. Blue light signals ready to open red light means locked and sealed. It supports 2 hour magnetic charging and Type C port for 15 days of use.
13oz- 25oz Stainless Steel Sport Water Bottle
15oz Stainless Steel Straight Water Cup with Tea Filter
The straight water cup features an inner food-grade 316 stainless steel interior and a 304 stainless steel tea basket, which can be easily taken out. Advanced double-wall vacuum tech retains heat for 12 hours. Leak-Proof Lid. Its smooth, straight cylindrical shape enables easy grip and fits most bike cages, working well for hot coffee/tea.
12oz Stainless Steel Insulated Water Flask
15oz to 33oz Stainless Steel thermal Drink Bottle
This large outdoor thermos drink bottle is designed for those who need reliable hydration during outdoor adventures. Made of high-quality 304 stainless steel, it features a secure lid, cup cap, and ergonomic handle for ease of use. With multiple size options, it's perfect for hiking, camping, or any other outdoor activities.
40oz Large Capacity Stainless Steel Flask
Haers stainless steel flask is made of durable food-grade stainless steel.Its double-walled vacuum insulation keeps drinks hot or cold, making it perfect for on-the-go hydration. With a large capacity, convenient wrist strap, and multiple stopper options, it's a versatile choice for any adventure. Customizable logo and finish options are available for wholesale orders.
600ml
800ml
1000ml
1200ml
+2
1500ml
1800ml
600ML-1800ML Customizable Thermal Bottle
590ML Stainless Steel Sports Cap Water Bottle
350-1000ML Stainless Steel Vacuum Flask
The Stainless Steel Vacuum Flask comes in polished metallic color right now, but it leaves you endless possiblities to customize the surface on finish and color. Available in 350 ml, 500 ml, 7000 ml, 800 ml, and 1000 ml. The leak-proof stopper and sweat-proof design make it easy to use and maintain.
530ml
700ml
1200ml
18oz-40oz Stainless Steel Vacuum Liquor Bottle
350ml~750ml Stainless Steel Insulated Coke Bottle
Double Wall Titanium Water Flask
15oz Insulated Titanium Bottle Wholesale
15oz Titanium Vacuum Water Bottle
ODM Service Provider
Looking for a reliable Water Flask Maunfacturer?
Haers is China’s largest flask manufacturer and a leader in the insulated drinkware industry for over 25 years. Our expertise spans the entire product development process, from conceptual design and prototyping to rigorous testing and mass production. Using premium materials like stainless steel and borosilicate glass, we ensure that every product meets the highest standards of quality and durability. We also provide customized solutions tailored to your needs and manage global logistics to guarantee seamless delivery. With our commitment to innovation and sustainability, we work closely with you to turn your ideas into exceptional products. Contact us at inquiry@haers.com, and we’ll respond within 24 hours.
Customize Flasks for your Brand
This is How ODM proceeds
The flask models in our current collection have already undergone structural design, lab testing, and trial production as part of the standard OEM process. Choosing ODM service can significantly reduce production time and shorten your order cycle.
Pick A Model
Choose from Haers’ extensive range of insulated coffee mug designs, including hundreds of options for bottle shapes and lids to suit your preferences.
Design & Packaging
Customize every detail, from logo placement and colors to patterns and surface finishes. Packaging is tailored to meet your specific branding needs.
Sampling
Once the design and packaging are finalized, we create samples for your review and approval before moving forward.
Haers China
Your Reliable Water Flask Supplier
Top-rated quality control
Each production line undergoes multiple inspections to identify any abnormalities, ensuring the utmost quality in every piece.
Five Factories around the Globe
Haers owns five manufacturing bases in China, Thailand, Switzerland, and a new intelligent lighthouse base is under construction.
With most awards and certifications
Haers has earned over 50 international certifications and more than 200 domestic certifications, 684 valid patents.
High-level In-house Lab
Haers has a comprehensive product testing process and the necessary equipment, with its testing capabilities reached at a national level.
Striving toward carbon neutrality
By enhancing production techniques and adopting energy-efficient equipment along with solar power, Haers is committed to achieving carbon neutrality.
Protection Your intellectual property
We emphasize the importance of intellectual property rights, making us the only enterprise in the industry with a customer IP protection system.
FAQs
Are you a Manufacturer or a trading company?
We are a direct stainless steel water flask manufacturer with our own factories around the globe. This allows us to offer competitive factory prices and strict quality control.
What types of customizations are available for bulk water flasks?
We offer options such as custom colors, logo printing, matte or glossy finishes, packaging design, and even unique lid styles to make your flask truly your own.
Do you provide OEM or private label water flasks?
Absolutely. As an experienced flask manufacturer, we offer full OEM and private label solutions to help you launch or expand your own product line.
Can you help with custom flask designs for promotional or corporate gifting purposes?
Yes, we regularly work with companies to create branded flasks for marketing events, staff gifting, and promotional giveaways.
Is it possible to order custom flasks in different materials?
We offer custom water flasks made from stainless steel, Tritan, Titanium and other BPA-free materials. Let us know your material preference and we’ll recommend the best option.
Can I choose the packaging for my custom flasks?
Yes. We provide custom packaging solutions including gift boxes, kraft tubes, retail-ready cartons, or eco-friendly designs—perfect for retail or gifting.
Can you match the flask color to my brand Pantone code?
Yes, we offer Pantone color matching for custom flask orders to ensure brand consistency across your product line.
Do you have experience producing branded flasks for international markets?
Yes, we manufacture and export custom flasks to Europe, North America, Southeast Asia, and more. We understand diverse market requirements and certifications.
How long does it take to produce a custom flask order?
Production timelines depend on your customization needs and order size. Please contact our team for a lead time estimate tailored to your project.
What kind of printing methods do you use for custom flasks?
We use laser engraving, silk screen printing, heat transfer, UV printing, and more than 30 ways of surface treatment—depending on your design and quantity.
