64 Oz. Insulated Stainless Steel Water Bottles

If you're looking for dependable hydration, the 64 oz water bottle is the optimal size for convenience, value, and durability. Investing in a half gallon water bottle with extra lids and fun accessories means you’ll always have your beverage of choice within arm’s reach, in a bottle that’s sustainable and affordable.

64 Oz Water Bottle From Iron Flask


What’s big, shiny, good for the environment, and quenches thirst? Your own reusable stainless steel 64 oz water bottle.

Along with its large size and convenience, the 64 oz reusable water bottle also has many practical benefits, thanks to premium stainless steel — the best material for reusable drinkware and food storage.

Benefits of a 64 oz Water Bottle

Stainless steel never rusts and doesn’t have a metallic taste — and this lightweight material makes it easy to take your bottle with you on the go. Stick with a 64 oz stainless steel insulated water bottle for temperature control and never suffer through another luke-warm sip. Double-walled vacuum insulation keeps drinks cold for 24 hours and hot for 12.

For portability, consider a 64 oz water bottle with a handle, which provides a secure grip when you're on the move. There are also plenty of ways to upgrade a basic bottle with practical add-ons like replacement lids or paracord handles for easy handling.

Another plus, we also back up all our products with a lifetime warranty and 100% satisfaction guarantee.

Custom 64 Oz Water Bottles

Along with its durable insulation, stainless steel is also lightweight, making it easy to store and carry on all your daily adventures. We offer a range of fun, eye-catching colors and classic shades — and for something extra, the Iron Flask custom 64 oz water bottle can also be upgraded with a laser-etched logo that features the unique brand of your company or organization. Our customization service allows you to personalize your bottle for a memorable keepsake that your friends, family, or colleagues will admire.

How Big is a 64 oz Bottle?

Just how big is a 64 oz bottle from Iron Flask? It's large enough to keep you and your friends well-hydrated throughout the day. To find out ounces per gallon, use an online calculator or multiply the volume value by 128. A 64 oz bottle gets you half a gallon (that’s equal to nearly two liters or eight cups) — the daily recommended water intake. All the more reason to keep a half gallon water bottle nearby to track your hydration goals!

You might also be wondering — How many bottles of water is 64 oz? Those are great questions, especially since it gives you another easy way to track your daily water intake by calculating the number of water bottles in a 64 oz hydration bottle. The most common plastic water bottle usually comes in a 16.9 oz size, so when you crunch the numbers, it comes out to nearly four single-use plastic bottles for each (if rounding up). No matter how you slice it, 64 oz is a hefty bottle that helps you keep plenty of hydration close at hand.

64 oz Stainless Steel Insulated Water Bottles At Iron Flask

Built to perform and last like no other, the 64 oz water bottle from Iron Flask is the smart solution to all your hydration needs. Get your own Iron Flask half gallon water bottle today — available in our wide mouth and narrow mouth collections.