--- product_id: 46410799 title: "On The Fly BPA-Free Water Bottle Replacement Cap" brand: "nalgene" price: "65 zΕ‚" currency: PLN in_stock: true reviews_count: 8 category: "Nalgene" url: https://www.desertcart.pl/products/46410799-on-the-fly-bpa-free-water-bottle-replacement-cap store_origin: PL region: Poland --- # Secure dual-lock closure BPA-free Tritan copolyester Made in USA quality On The Fly BPA-Free Water Bottle Replacement Cap **Brand:** nalgene **Price:** 65 zΕ‚ **Availability:** βœ… In Stock ## Summary > πŸ”„ Upgrade your hydration game with the ultimate spill-proof cap! ## Quick Answers - **What is this?** On The Fly BPA-Free Water Bottle Replacement Cap by nalgene - **How much does it cost?** 65 zΕ‚ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/46410799-on-the-fly-bpa-free-water-bottle-replacement-cap) ## Best For - nalgene enthusiasts ## Why This Product - Trusted nalgene brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Eco-Friendly & Safe:** Crafted from BPA-free Tritan copolyester, dishwasher and microwave safe for sustainable convenience. - β€’ **Comfort-Optimized Spout:** Ergonomically sized spout for easy sipping and effortless cleaning, perfect for your on-the-go lifestyle. - β€’ **Leakproof Dual-Lock Design:** Innovative push-button and wire swing gate ensure your bottle stays sealedβ€”no accidental spills, guaranteed. - β€’ **Rugged & Ready for Adventure:** Sturdy enough to survive drops, bike rides, and daily hustle without a hitch. - β€’ **Unbreakable USA Craftsmanship:** Proudly made in the United States for unmatched durability and quality assurance. ## Overview The Nalgene On The Fly BPA-Free Water Bottle Replacement Cap is a durable, USA-made lid designed to replace your standard screw top with a secure, dual-lock mechanism. Made from BPA-free Tritan copolyester, it features an ergonomic spout for easy drinking and cleaning, is dishwasher and microwave safe, and built to withstand everyday wear and tear, making it the perfect upgrade for active professionals who demand reliability and style. ## Description Lid for OTF Review: Very nice lid. If you need a replacement, give them a try, but I'm not sure if it's worth the cost to upgrade outright. - I partially freeze my water bottles for the day over night, and every so often I accidentally leave one in there. When that happens, occasionally the bottle itself will crack, but more often than not, the threads on the lid just get shredded up and the cap bursts off, so I end up replacing a lid a month or so. when I saw that these were something like $1.50 more, I decided to give them a shot. Here's a few quick pieces of info for future buyers. Pros: -The spout is great. I always get the large mouth nalgenes because it's easier to throw lemon slices in there if I want, and it's much easier for cleaning, but the big mouth can be awkward. This is a pretty good compromise. The spout is about the size of a glass soda bottle (probably a little thinner) and very comfortable to drink out of, but removes for cleaning. -These seem way sturdier than I expected. Nalgene always makes nearly indestructible products, so I don't know why I was surprised, but something about the design seems . . .tenuous. I can assure you, it's not. This is a very substantial product. We'll see how it survives a fall if I mishandle it rock climbing, but for day to day use, I have no doubt that this would survive a fall from head height. -The lid closes with both a plastic catch/push button on the front, and a wire swing gate. This thing is not coming open by accident. My guess is that it would break before it opened in a drop. -I've hung it by a carabiner and attached it to my bike already and it doesn't seem any worse for wear. The loop is definitely handle worthy. -The closing mechanism is a little stiff to provide a solid seal, but I have absolute confidence that there won't be any leaks or drips. Cons: -This obviously adds to the height of the nalgene. It's not much, but it just so happens to be just enough to make it catch on the zipper on my messenger bag, so I'm sure I'm noticing it way more than anyone else would. -The only part on the lid I'm even slightly worried about is the push button mechanism. It seems very sturdy, but getting opened dozens of times a day every day might be rough. I will update if it ever snaps. If I haven't updated, you can assume the latch is still holding firm. Any other complaints I have are cosmetic, so I can't really hold them against the product. It would be cool if there were more colors (the bottle I needed this for was orange). I like the classic nalgene look, these look a little over-designed for my tastes. All and all, when I wind up screwing up a new lid, I'm not sure which way I'll go. It'll probably depend on how this top is holding up. I definitely won't be upgrading unless the current tops on my nalgenes get damaged. A nalgene on desertcart is something like $12, parting with $7 for a lid upgrade seems a little silly to me, but if I'm replacing the lid anyways, it's probably a toss up between the classic ones and these. If you need to replace your lid anyways, check them out. Review: Replace your screw top with this pop top!! - Great top. Easy to open and stays securely closed when clasped. Much preferred to the standard screw top. Our guide in Nepal loved it so much, that we gifted it and the bottle to him. Will definitely be repurchasing. ## Features - Made in United States - Product type : BOTTLE - Package dimensions : 6.400 cm x 6.908 cm x 9.499 cm - Package weight : 0.041 kg ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06XRNW1B5 | | Best Sellers Rank | #6,338 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #429 in Water Bottles | | Brand | Nalgene | | Brand Name | Nalgene | | Closure Type | Cap,Lid | | Color | Black/Gray | | Customer Reviews | 4.4 out of 5 stars 4,888 Reviews | | Global Trade Identification Number | 00000194049915 | | Included Components | Lid | | Is the item dishwasher safe? | Yes | | Is the item microwaveable? | Yes | | Item Dimensions L x W | 10"L x 3"W | | Item Type Name | OTF Lid | | Item Weight | 0.09 Pounds | | Manufacturer | Nalgene | | Manufacturer Warranty Description | lifetime of the bottle | | Material | Tritan copolyester | | Material Type | Tritan copolyester | | Number of Pieces | 1 | | Product Dimensions | 10"L x 3"W | | Product Style | Compact | | Shape | Round | | Style | Compact | | UPC | 000194049915 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Nalgene - **Color:** Black/Gray - **Material:** Tritan copolyester - **Product Dimensions:** 10"L x 3"W - **Style:** Compact ## Images ![On The Fly BPA-Free Water Bottle Replacement Cap - Image 1](https://m.media-amazon.com/images/I/61i3LZ0cRuL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Does this cap fit the Nalgene 48 oz bottle? Without leaking?** A: The cap fits all three bottle sizes that I have, 1000 ml, 600 ml. and the little one about 400ml My bottles don't have oz. **Q: Will this Nalgene OTF Bottle Lid fit the 48 ounce Nalgene bottle?** A: I know it will fit the 32 oz. Nalgene bottle, and from the pictures, the 32 and 48 oz lids look to be the same. We've had some trouble keeping the OTF lid latch closed. 48 oz is a lot of liquid to clean up. About the same cost is the human gear capcap. That seems like a better design and less prone to accidents. **Q: Is this the cap or a retail display for bottles and such? The descrition doesn't match the title.** A: This is the cap only. As a replacement item in the event the existing cap is faulty and needs replacement. So rather then buying a new bottle you can just purchase the cap. **Q: Will this fit a wide mouth nalgene bottle?** A: This top fits the standard Nalgene bottle. Not the smaller top, and I'm not sure what the wide mouth Nalgene is. But it will fit the standard (read original) Nalgene bottle size. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very nice lid. If you need a replacement, give them a try, but I'm not sure if it's worth the cost to upgrade outright. *by J***F on August 24, 2014* I partially freeze my water bottles for the day over night, and every so often I accidentally leave one in there. When that happens, occasionally the bottle itself will crack, but more often than not, the threads on the lid just get shredded up and the cap bursts off, so I end up replacing a lid a month or so. when I saw that these were something like $1.50 more, I decided to give them a shot. Here's a few quick pieces of info for future buyers. Pros: -The spout is great. I always get the large mouth nalgenes because it's easier to throw lemon slices in there if I want, and it's much easier for cleaning, but the big mouth can be awkward. This is a pretty good compromise. The spout is about the size of a glass soda bottle (probably a little thinner) and very comfortable to drink out of, but removes for cleaning. -These seem way sturdier than I expected. Nalgene always makes nearly indestructible products, so I don't know why I was surprised, but something about the design seems . . .tenuous. I can assure you, it's not. This is a very substantial product. We'll see how it survives a fall if I mishandle it rock climbing, but for day to day use, I have no doubt that this would survive a fall from head height. -The lid closes with both a plastic catch/push button on the front, and a wire swing gate. This thing is not coming open by accident. My guess is that it would break before it opened in a drop. -I've hung it by a carabiner and attached it to my bike already and it doesn't seem any worse for wear. The loop is definitely handle worthy. -The closing mechanism is a little stiff to provide a solid seal, but I have absolute confidence that there won't be any leaks or drips. Cons: -This obviously adds to the height of the nalgene. It's not much, but it just so happens to be just enough to make it catch on the zipper on my messenger bag, so I'm sure I'm noticing it way more than anyone else would. -The only part on the lid I'm even slightly worried about is the push button mechanism. It seems very sturdy, but getting opened dozens of times a day every day might be rough. I will update if it ever snaps. If I haven't updated, you can assume the latch is still holding firm. Any other complaints I have are cosmetic, so I can't really hold them against the product. It would be cool if there were more colors (the bottle I needed this for was orange). I like the classic nalgene look, these look a little over-designed for my tastes. All and all, when I wind up screwing up a new lid, I'm not sure which way I'll go. It'll probably depend on how this top is holding up. I definitely won't be upgrading unless the current tops on my nalgenes get damaged. A nalgene on amazon is something like $12, parting with $7 for a lid upgrade seems a little silly to me, but if I'm replacing the lid anyways, it's probably a toss up between the classic ones and these. If you need to replace your lid anyways, check them out. ### ⭐⭐⭐⭐⭐ Replace your screw top with this pop top!! *by L***S on January 19, 2026* Great top. Easy to open and stays securely closed when clasped. Much preferred to the standard screw top. Our guide in Nepal loved it so much, that we gifted it and the bottle to him. Will definitely be repurchasing. ### ⭐⭐⭐⭐⭐ Great for Nalgene! Do not buy for Hydro Flask. *by H***W on May 14, 2015* These work really well for making your Nalgene bottle a little more user friendly. They work great on the 32 or 48 ounce versions. A little more handy on the 32 than 48 though (repeatedly lifting a foot long 3 pound bottle to your face is not the quickest or easiest thing) This is a very handy top. It is also pretty sturdy. There have been at least 2 occasions I have dropped it on a side walk while attached to a full 32 ounce Nalgene. It got a little scuffed but still functions like new. Make sure you use the metal band to lock the lid shut. I forgot to do it a couple times and once the bottle opened in my bag and got everything wet. Luckily there were no electronics so nothing got ruined but it definitely was an eye opener. I am much more careful now. Hydro Flask: I had originally bought this for my 32 ounce insulated Hydro Flask. It's the same shape and size(roughly, very similar. Hydro Flask is a little taller and maybe a tiny smidgen less in diameter than the Nalgene). However these DO NOT WORK on the Hydro Flask. Water leaks around the threads. When screwing the cap onto the Hydro Flask it feels just fine like it's meant for it, it doesn't bind up or feel too loose. Because of this I'm thinking you might be able to get away with using some teflon tape around the threads to seal it better. There's a space on the underside of the cap that looks like it would be perfect for an o-ring. If you could get one just the right size it might also stop the water leakage problem. ## Frequently Bought Together - Nalgene On The Fly BPA-Free Water Bottle Replacement Cap - Nalgene Sustain Tritan BPA-Free On The Fly Water Bottle Made with Material Derived from 50% Plastic Waste - Nalgene Sustain Tritan BPA-Free Water Bottle Made with Material Derived From 50% Plastic Waste (using ISCC certified mass balance), 32 OZ, Wide Mouth --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/46410799-on-the-fly-bpa-free-water-bottle-replacement-cap](https://www.desertcart.pl/products/46410799-on-the-fly-bpa-free-water-bottle-replacement-cap) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-26*