Home>Water Bottles>Flat Square Rectangular Vacuum Insulated Stainless Steel Drink Bottle S11350A2

Flat Square Rectangular Vacuum Insulated Stainless Steel Drink Bottle S11350A2

Product Features:

  • Unique: This thermos stainless steel drinking water bottle is the world’s first flat / square insulated drinkware. After ten years of research and development, KingStar has broken through the barriers in the manufacturing process of square insulated double wall cup.
  • Easy to carry: The flat water bottle is stylish and practical. It’s suitable for schoolbag, backpacks, handbag etc.
  • Double Walled Vacuum Insulation Technology: This vacuum insulated water cup can keep food hot for 8 hour and cold for 16 hours.
  • Perfect gift: It is a unique vacuum flask for the use in kitchen and office, also for fishing, hunting, camping. It is excellent for corporate gift, business gift, student gift, school gift, event gift.
  • BPA Free: This thermal insulated water bottle is made of commercial grade 18/8 stainless steel (SS304 stainless steel) and high quality PP, silicon. All the materials are BPA free.
  • Tight Seal Containers: The flat square vacuum flask comes with 2 tight-seal containers that will not allow.
  • Durable
  • Reusable

Customizing Options:

  • Size/Capacity: 350 ml or other customized capacity.
  • Logo: custom logo is workable. Logo options include: screen printing, laser engraved logo, embossed logo, 3D printing etc.
  • Color: Any color. As long as the customer provides the Pantone number, we will produce it accordingly.
  • Decorating: brushed stainless steel, spray painting, powder coating, transfer printing, 3D printing etc.
  • Pattern: custom pattern can be printed and can be done by various printing techniques: silk screen printing, heat transfer printing, water transfer printing, sublimation transfer, etc.
  • Packaging box: white box, custom gift box, cylinder box, eggcrate, bubble bag, etc.
Category: Tag:


Product Name:

Flat Square Rectangular Vacuum Insulated Stainless Steel Drink Bottle

Model Number / SKU: S11350A2
Capacity /Size: 12 oz (350 ml)
Mouth Diameter: 1.58 inch (4.0 cm)
Bottle Width: 2.0 inch (5.4 cm)
Height: 3.46 inch (8.8 cm)
Bottle Material: 18/8 food grade stainless steel (SUS304 stainless steel)
Lid Material: Stainless Steel + PP + Silicone
Surface Decoration Technical: Spray painting
Insulation Performance: Keep cold up to 18 hours/ keep hot up to 9 hours
BPA Free: Yes
Phthalate-Free Yes
Lead Free Yes
ECO Friendly Yes
Fit Cup Holder NA
Sweat Free Design: Yes
Certificate: FDA, LFGB, CA65 / Prop 65

Why Choose KingStar Flat Square Vacuum Insulated Stainless Steel Water Bottle?

1) CE&FDA&CA65/Prop65&LFGB certified vacuum insulated flat square stainless steel drink bottle, it is BPA free and durable. KingStar is the only manufacturer in the world that can produce vacuum insulated flat/ square stainless steel water bottles.

2) Be Unique: With our stylish design, your business or event with KingStar vacuum insulated double wall flat square stainless steel drink bottle can be unique as you expect. Your brand will stand out and win the favor of more customers. We hope every product we make will be prefect to express your brand and help you gain more market share.

3)  Professional quality control of vacuum insulated flat square stainless steel drink bottles: KingStar pays great attention to quality control, We have 30 in-process quality inspectors and 5 open-box inspectors. we check each thermos flat square water bottle that will sell to all over the world.

4) KingStar respects intellectual property rights and keep confidentiality. If necessary, we’ll be more than happy to sign NDA / NNN with you to keep your OEM design secret.

5) Specialized in manufacturing and exporting of all kinds of drinkware such as water bottles, wholesale tumblers, food containers, dog bowls, salad bowls, can coolers. KingStar owns automated and high efficient production lines. We embrace Industry4.0 and stay competitive in the industry. Automated production makes our products lower in cost and more competitive in price.

6) We are vacuum flask OEM manufacturer. KingStar has top professional engineers with more than 20 Years water bottle manufacturing industry experience, can help you turn your design into a unique and best-selling product.

7) We offer custom manufacturing. More about our capability and service of customization.

Custom Vacuum Flask Moldinghttps://www.waterbottle.tech/custom-molding/

Custom Water Bottle Manufacturinghttps://www.waterbottle.tech/custom-manufacturing/

Custom Decoratinghttps://www.waterbottle.tech/custom-decorating/

Custom Logohttps://www.waterbottle.tech/custom-logo/

Custom Packaginghttps://www.waterbottle.tech/custom-packaging/

insulated flat oval square stainless steel water bottle s11350a2 -1
insulated flat oval square stainless steel drink bottle
insulated flat oval square thermos bottle



Yes, it’s our pleasure to provide samples to you for testing. We usually provide exiting model samples for free. If you want to get customized samples, we will charge a little. However, samples charge will be refunded when you place order.

For existing model samples, it takes 2-3 working days. If you want samples with your own designs, it takes 5-7 days or even longer. Let’s discuss case by case.

Any colors with Pantone code. We have rich experience in matching colors with Pantone Matching System, so you can just tell us the Pantone color code you want and then we handle the others. If you have no idea on Pantone code, we will recommend some popular colors to you.

Since many new customers come to ask this question every week, we have written an article to answer this question. Please refer to the link below: Guide to Purchase Custom Color Water Bottles

Normally It takes 4 weeks.

Tell us you requirement or provide your design in JPG, doc, AI, cdr or PDF format. Our in house designer will work out 3D drawing for your final approval/confirmation. Or just send us the product URL from Amazon or your potential competitor’s website and your idea, we will handle all other jobs.

KingStar has a long history in the vacuum insulated stainless steel water bottle industry. We have a strong in house research and development team. Since our establishment we have developed many products that are unique, indispensable and irreplaceable. You can be sure that KingStar has the best and newest models in the industry.

We are available in the office from Mondays to Fridays from 8:00 am to 6:00 pm. A highly trained manager will be available to receive your call and help you in everything you need. You can write to sales@waterbottle.tech. We reply each inquiry within 24 hours.

If you would like to get samples from us in order to make reviews, please contact our Sales / Branding department at sales@waterbottle.tech.

FDA, Prop65/CA65, LFGB, REACH.

T/T 30% deposit after order signed and 70% against copy of B/L.
L/C at sight is acceptable too.

Yes, you can make payment via Paypal for small orders. We do have Paypal account.

It’s very easy to purchase our products with your private label/logo. Send an email to sales@waterbottle.tech. Our experienced Sales Manager will provide complete service and guide you.

Please Contact Us through our official email or phone number so you can receive further information on how to become KingStar Global Partner.

Since many customer asked this question about how vacuum flasks are made. To know details, pls click here: vacuum insulated stainless steel water bottle manufacturing process

304 stainless steel is a common material in stainless steel. It is a healthy material. The important elements in 304 are Ni, Cr, but are not limited to these two elements. The industry generally judges that as long as the Cr content is greater than 18% and the Ni content is greater than 8%, the steel can be considered as SUS304 stainless steel. This is why the industry refers to this type of stainless steel as 18/8 stainless steel.

Yes, sure.  KingStar drinkware customized with your logo and brand colors are great gifts for office employees, students, event attendees and clients, and make your business top-of-mind. They are an impressive addition to gift baskets.

Click and read more about KingStar corporate gift program