Insulated (64oz Sleeve) Stainless Steel Water Bottle - Black


Color: Black
Size: 64 oz
594 in stock, ready to ship

Thermosis 64 oz Half Gallon Insulated Stainless Steel Water Bottle With Straw and Handle, 2 Liter Flask with Wide Mouth Opening and Storage Sleeve with 2 Lids (Straw and Spout Lids) - Black 

18/8 PREMIUM STAINLESS STEEL WATER BOTTLES - Our large half gallon Iron water bottle is BPA FREE & ENVIRONMENT-FRIENDLY. It is reusable and does not sweat like plastic water bottles.

ADVANCE VACUUM INSULATION WITH LEAKPROOF LIDS - Our state of the art insulated water bottle comes with 2 leak proof Lids with straw which helps keep drink HOT for 12 hours and COLD for 24 hours.

VERSATILITY - Our travel friendly 64 oz water bottle is truly multifunctional. It can make a great sports water jug for the gym lover or function as thermos for hot drinks for outdoor campers.

MULTI-COLOR DESIGN - Choose from our wide variety of simple and modern designs. THERMOSIS thermal flasks make a great gift for kids as well as any adults looking for healthy lifestyle.

PREMIUM CARRIER WITH HANDLES - Functional travel bag with handle and carrying strap, the front storage pocket can hold keys, cards, and cell phones of any size. Choose your favorite color and design and travel in style! 



  • Start by emptying the bottle and rinsing it with warm water.
  • Create a cleaning solution by mixing mild dish soap with warm water.
  • Use a bottle brush or a soft sponge to scrub the interior of the bottle, paying extra attention to the areas with residue or odor.
  • Rinse thoroughly with warm water to remove any soap residue.
  • For stubborn stains or odors, you can use a mixture of baking soda and water to scrub the affected areas.
  • After cleaning, ensure the bottle is completely dry before reassembling or storing.


  • Fill a container with warm water and add a few drops of mild dish soap.
  • Place the straw in the soapy water and let it soak for a few minutes.
  • Use a small brush, such as a pipe cleaner or straw cleaning brush, to scrub the inside and outside of the straw.
  • Rinse the straw thoroughly with warm water to remove any soap residue.
  • Inspect the straw for any remaining stains or residue. If necessary, repeat the cleaning process.


  • Remove the neoprene sleeve from the bottle.
  • Fill a basin or sink with warm water and add a small amount of mild detergent.
  • Submerge the neoprene sleeve in the soapy water and gently agitate it to loosen any dirt or stains.
  • Use a soft brush or sponge to scrub the sleeve, paying attention to any particularly dirty areas.
  • Rinse the neoprene sleeve thoroughly with clean water to remove any soap residue.
  • Squeeze out any excess water and allow the sleeve to air dry completely before reattaching it to the bottle.

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused, with all accessories (if applicable), and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at

If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any questions at

Damages and issues

Please inspect your order upon receipt and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items

Unfortunately, we cannot accept returns on sale items or gift cards.


The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.


We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at

Color: Black
Size: 64 oz

Features and Benefits

4 Reasons why you need a Thermosis water bottle

Crafted from premium 18/8 stainless steel, our Thermosis water bottles are built to last, ensuring durability and reducing environmental impact by eliminating single-use plastic waste.

Our Thermosis water bottles keep your drinks hot for 12 hours and cold for 24 hours, so you can enjoy your preferred beverage at the perfect temperature, anytime, anywhere.

From intense workouts to outdoor adventures or everyday use, our Thermosis water bottles are designed to adapt to your lifestyle. Stay hydrated during sports activities, enjoy hot drinks during camping trips, or simply carry your favorite beverage wherever you go.

Personalize your hydration experience with our wide range of multi-color design options. Choose a Thermosis water bottle that matches your style and reflects your unique personality, making hydration an expression of self.

Hydrate, Stay Vibrant

Experience the Difference Today!

Embrace Eco-friendly Hydration

At Thermosis, we believe in a sustainable future and making conscious choices that benefit both our health and the environment. By choosing our reusable stainless steel water bottles, you're taking an active step towards reducing single-use plastic waste.

Frequently Asked Questions

Here are a few FAQ from our previous customers.

Are Thermosis water bottles made of stainless steel?

Yes, Thermosis water bottles are made of premium 18/8 stainless steel, ensuring durability and eco-friendliness.

Are the lids of Thermosis water bottles leakproof?

Absolutely! Thermosis water bottles come with leakproof lids, providing a secure seal to prevent any spills or leaks.

How long can Thermosis bottles keep drinks hot or cold?

Our state-of-the-art vacuum insulation technology enables Thermosis bottles to keep drinks hot for up to 12 hours and cold for up to 24 hours.

Can I use Thermosis bottles for both hot and cold beverages?

es, Thermosis bottles are designed to accommodate both hot and cold beverages, making them suitable for various drink preferences and seasons.