A slim shape and fortified cap make On-The-Fly ideal for care-free storage in work bags, gym bags, backpacks and cup holders. Opens easily for convenient one-hand refreshment on the fly. Locks to prevent spills.
Features
Bottle Made In the USA
Local goods mean local jobs and fewer emissions. Cap made in China.
BPA/BPS Free
So you can drink water that's safe and tastes great.
Built to Last
Our durable goods are made to last a lifetime.
Dishwasher Safe
Safe to put in the dishwasher and easy to clean.
Fits Cupholders
This bottle fits in cupholders so you can take it with you on the road or at the gym.
Fits Ice Cubes
Put ice in your bottle with ease and enjoy your frosty beverage anywhere.
Leak-Proof Guarantee
Continuous, straight shouldered semi-buttress threads keep the bottle sealed tight.
I love this bottle. My first one, I had for 4 years, but I lost it an bought immediately a new one. It fits perfectly in the bottle holder of my bike and I can drink from it while I’m riding, because I only need one hand to open it.
For all bike riders I recommend it
Rated 5 out of 5
Shawni
This is my FAVORITE water bottle! Quick, one handed pop top and I can pour it out, no need to suck through a straw. I like that I can lock the lid with the clip so it doesn’t accidentally tip over and spill. I have had the top get mildewy, but it just needs a good, thorough cleaning, and I’m sure that the mildew come from lack of cleaning! The lid did finally crack, but I have used this daily for years and years and years! Best investment ever. Thanks, Nalgene for making a fantastic water bottle!
Rated 2 out of 5
WR
Bottle itself is good. Cap assembly is typical chinese made garbage. Locking mechanism cracked after a few uses. Also, mold is very difficult to prevent/remove from soft seal material.
Rated 5 out of 5
Diane Mackie
Best water bottle i have had. Easy open and doesn’t leak.
Rated 5 out of 5
Manuel
I love this bottle and use 2 of them since 10 years.
But now one lid is cracked when screwing and the 2nd is no longer completely tight.
But 10 years!
Cleaning is easy.
Only hot water and detergent pure and shake. Rub out with a cloth and no brush.
Scratches by scrubbing are bacteria foci.
Rated 1 out of 5
Zeddo
BRING BACK the old style lid. It NEVER grew mold.
Rated 1 out of 5
Alan D.
I started thinking that the bottle and cap are great. After a few months a mouldy smell developed in the lid the simply won’t go despite intensive cleaning. Are the white seals in the lid replaceable? I can’t seem to find out from your website. If I could solve this, it would be a 5* review.
Alicia Klesseck
Hi Alan,
The seal is not replaceable but the cap is if you submit a case here. That said, we also always recommend storing your caps open until they fully dry to avoid mold.
Thanks!
– Nalgene Team
Rated 3 out of 5
Dennis
The underside of the flip top where you could carry it with your finger should be rounded without the groove. Uncomfortable when on a long walk
Rated 5 out of 5
Jakub R.
I love my bottle. I have used it now for more than 10 years and I am looking foroward to the next 10 years. The one hand opening is the best.
Rated 2 out of 5
Mike
Bottle is good, but the cap molds around the silicone seal and is impossible to fully clean. Not worth the buy – would recommend a different product.
Rated 5 out of 5
Katelyn Royce
I love this bottle. I have two and they work so well. I got another bc my first one doesn’t lock anymore but the metal still holds it closed. My favorite
Rated 2 out of 5
Jen
Comfortable bottle to hold and worked great for about 4 months. Unfortunately, two mishaps led to me no longer being able to use it.
The first mishap occurred when my full 24 oz. bottle popped open in my school bag, soaking everything, including my laptop. Somehow, the locking metal hook had detached from the bottle on one side, which allowed the push button to open as it sat on the front seat of my car on the way to school. (Laptop is still usable but still has water marks visible on the screen a month later. The metal hook that broke away, could not be reattached and remained dangling.).
The second mishap occurred a few weeks later when I bumble-finger dropped the bottle, again at school, and it hit the floor, landing just right, to prevent the cap from staying closed anymore, rendering it useless.
From now on, I will stick to the twist off capped bottles.
Rated 5 out of 5
Susanna
i’ve had the same bottle for over 5 years and i still love it! super durable – i’ve dropped it numerous times and it has yet to crack. the metal latch and the clicking closure ensure it won’t leak (i’ve only had leaks when i don’t twist the cap on correctly). love the popping sound when you open.
Rated 5 out of 5
Alisa
I’ve purchased these for my family, and they’re addicted. We have a half dozen of them at this point. The clip lock has saved the day sooooo many times during clumsy moments.
Rated 4 out of 5
Adele Hunt
The bottle is durable and is the perfect size for hiking but the snapping lid broke pretty quick. Do not recommend the snapping lid.
Rated 5 out of 5
stlee00
Best water bottle ever!
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Lea
I love this bottle. My first one, I had for 4 years, but I lost it an bought immediately a new one. It fits perfectly in the bottle holder of my bike and I can drink from it while I’m riding, because I only need one hand to open it.
For all bike riders I recommend it
Shawni
This is my FAVORITE water bottle! Quick, one handed pop top and I can pour it out, no need to suck through a straw. I like that I can lock the lid with the clip so it doesn’t accidentally tip over and spill. I have had the top get mildewy, but it just needs a good, thorough cleaning, and I’m sure that the mildew come from lack of cleaning! The lid did finally crack, but I have used this daily for years and years and years! Best investment ever. Thanks, Nalgene for making a fantastic water bottle!
WR
Bottle itself is good. Cap assembly is typical chinese made garbage. Locking mechanism cracked after a few uses. Also, mold is very difficult to prevent/remove from soft seal material.
Diane Mackie
Best water bottle i have had. Easy open and doesn’t leak.
Manuel
I love this bottle and use 2 of them since 10 years.
But now one lid is cracked when screwing and the 2nd is no longer completely tight.
But 10 years!
Cleaning is easy.
Only hot water and detergent pure and shake. Rub out with a cloth and no brush.
Scratches by scrubbing are bacteria foci.
Zeddo
BRING BACK the old style lid. It NEVER grew mold.
Alan D.
I started thinking that the bottle and cap are great. After a few months a mouldy smell developed in the lid the simply won’t go despite intensive cleaning. Are the white seals in the lid replaceable? I can’t seem to find out from your website. If I could solve this, it would be a 5* review.
Alicia Klesseck
Hi Alan,
The seal is not replaceable but the cap is if you submit a case here. That said, we also always recommend storing your caps open until they fully dry to avoid mold.
Thanks!
– Nalgene Team
Dennis
The underside of the flip top where you could carry it with your finger should be rounded without the groove. Uncomfortable when on a long walk
Jakub R.
I love my bottle. I have used it now for more than 10 years and I am looking foroward to the next 10 years. The one hand opening is the best.
Mike
Bottle is good, but the cap molds around the silicone seal and is impossible to fully clean. Not worth the buy – would recommend a different product.
Katelyn Royce
I love this bottle. I have two and they work so well. I got another bc my first one doesn’t lock anymore but the metal still holds it closed. My favorite
Jen
Comfortable bottle to hold and worked great for about 4 months. Unfortunately, two mishaps led to me no longer being able to use it.
The first mishap occurred when my full 24 oz. bottle popped open in my school bag, soaking everything, including my laptop. Somehow, the locking metal hook had detached from the bottle on one side, which allowed the push button to open as it sat on the front seat of my car on the way to school. (Laptop is still usable but still has water marks visible on the screen a month later. The metal hook that broke away, could not be reattached and remained dangling.).
The second mishap occurred a few weeks later when I bumble-finger dropped the bottle, again at school, and it hit the floor, landing just right, to prevent the cap from staying closed anymore, rendering it useless.
From now on, I will stick to the twist off capped bottles.
Susanna
i’ve had the same bottle for over 5 years and i still love it! super durable – i’ve dropped it numerous times and it has yet to crack. the metal latch and the clicking closure ensure it won’t leak (i’ve only had leaks when i don’t twist the cap on correctly). love the popping sound when you open.
Alisa
I’ve purchased these for my family, and they’re addicted. We have a half dozen of them at this point. The clip lock has saved the day sooooo many times during clumsy moments.
Adele Hunt
The bottle is durable and is the perfect size for hiking but the snapping lid broke pretty quick. Do not recommend the snapping lid.
stlee00
Best water bottle ever!