Hydro Flask Wide Mouth Flex SIP Lid
For coffee on the go, the 16oz Coffee Flask from Hydro Flask with new Flex Sip Lid. The ultimate in temperate vacuum technology, caffeine lovers rejoice, the Hydro Flask 16oz Wide Mouth coffee flask with an all-new Flex Sip Lid perfect for keeping your favourite beverage hot hour after hour. Whether youre taking your morning coffee to the office, hiking through the mountains or simply heading to the gym, Hydro Flasks TempShield double-wall vacuum insulation ensures your beverage of choice tastes exactly how you want, for as long as you need it to. A double-walled inner and outer chamber within the flask creates a vacuum to prevent heat transfer through conduction. In addition, the inner chamber features a reflective lining, ensuring theres virtually no way heat can escape or enter the flask. The result a flask that unrivalled in its ability to ensure optimal temperatures for your drink of choice. The all-new innovative Flex Sip Lid features a smooth flow opening that lets you sip and transport your drink without worrying about leaks and features a handy flex strap for easy carrying. Hydro Flask bottles use 188 Pro-Grade stainless steel which BPA and Phthalate-free, which culminates in a flask that designed for a lifetime.The Hydro Flask 16oz Flex Sip flask perfect for a busy day, whether youre commuting the city or hiking trails, stay hydrated and caffeinated, no matter the temperature.
For coffee on the go, the 16oz Coffee Flask from Hydro Flask with new Flex Sip Lid. The ultimate in temperate vacuum technology, caffeine lovers rejoice, the Hydro Flask 16oz Wide Mouth coffee flask with an all-new Flex Sip Lid perfect for keeping your favourite beverage hot hour after hour. Whether youre taking your morning coffee to the office, hiking through the mountains or simply heading to the gym, Hydro Flasks TempShield double-wall vacuum insulation ensures your beverage of choice tastes exactly how you want, for as long as you need it to. A double-walled inner and outer chamber within the flask creates a vacuum to prevent heat transfer through conduction. In addition, the inner chamber features a reflective lining, ensuring theres virtually no way heat can escape or enter the flask. The result a flask that unrivalled in its ability to ensure optimal temperatures for your drink of choice. The all-new innovative Flex Sip Lid features a smooth flow opening that lets you sip and transport your drink without worrying about leaks and features a handy flex strap for easy carrying. Hydro Flask bottles use 188 Pro-Grade stainless steel which BPA and Phthalate-free, which culminates in a flask that designed for a lifetime.The Hydro Flask 16oz Flex Sip flask perfect for a busy day, whether youre commuting the city or hiking trails, stay hydrated and caffeinated, no matter the temperature.
For coffee on the go, the 16oz Coffee Flask from Hydro Flask with new Flex Sip Lid. The ultimate in temperate vacuum technology, caffeine lovers rejoice, the Hydro Flask 16oz Wide Mouth coffee flask with an all-new Flex Sip Lid perfect for keeping your favourite beverage hot hour after hour. Whether youre taking your morning coffee to the office, hiking through the mountains or simply heading to the gym, Hydro Flasks TempShield double-wall vacuum insulation ensures your beverage of choice tastes exactly how you want, for as long as you need it to. A double-walled inner and outer chamber within the flask creates a vacuum to prevent heat transfer through conduction. In addition, the inner chamber features a reflective lining, ensuring theres virtually no way heat can escape or enter the flask. The result a flask that unrivalled in its ability to ensure optimal temperatures for your drink of choice. The all-new innovative Flex Sip Lid features a smooth flow opening that lets you sip and transport your drink without worrying about leaks and features a handy flex strap for easy carrying. Hydro Flask bottles use 188 Pro-Grade stainless steel which BPA and Phthalate-free, which culminates in a flask that designed for a lifetime.The Hydro Flask 16oz Flex Sip flask perfect for a busy day, whether youre commuting the city or hiking trails, stay hydrated and caffeinated, no matter the temperature.
For coffee on the go, the 16oz Coffee Flask from Hydro Flask with new Flex Sip Lid. The ultimate in temperate vacuum technology, caffeine lovers rejoice, the Hydro Flask 16oz Wide Mouth coffee flask with an all-new Flex Sip Lid perfect for keeping your favourite beverage hot hour after hour. Whether youre taking your morning coffee to the office, hiking through the mountains or simply heading to the gym, Hydro Flasks TempShield double-wall vacuum insulation ensures your beverage of choice tastes exactly how you want, for as long as you need it to. A double-walled inner and outer chamber within the flask creates a vacuum to prevent heat transfer through conduction. In addition, the inner chamber features a reflective lining, ensuring theres virtually no way heat can escape or enter the flask. The result a flask that unrivalled in its ability to ensure optimal temperatures for your drink of choice. The all-new innovative Flex Sip Lid features a smooth flow opening that lets you sip and transport your drink without worrying about leaks and features a handy flex strap for easy carrying. Hydro Flask bottles use 188 Pro-Grade stainless steel which BPA and Phthalate-free, which culminates in a flask that designed for a lifetime.The Hydro Flask 16oz Flex Sip flask perfect for a busy day, whether youre commuting the city or hiking trails, stay hydrated and caffeinated, no matter the temperature.
in 5 offers
The lowest price for Hydro Flask Wide Mouth Flex SIP Lid right now is $19.95 at Natural Necessity Surf Shop, compared across 5 retailers.
The all-time low was $5.97 on 26 Apr 2026 — today's price is 234% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 23 Sept 2026.
Last updated at 23/09/2026 04:30:04
Hydro Flask Wide Mouth Lids- Accessory for Wide Mouth Water Bottle
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Wide Mouth Sip Lid
Delivery $9.95
Wide Mouth Flex Sip Lid Black| Hydro Flask | Matchbox
Delivery $12.50
Wide Mouth Flex Sip Lid Black
Delivery between 28 Sept – 7 Oct $10
Hydro Flask Wide Mouth Flex Sip Lid Black
Delivery $40.08
originally posted on influenster.com
Works well but… The lid works well for the most part, but the straws that came with it melted in the dishwasher within one week of purchase. There were no directions not to put them in the dishwasher, and I figured my other straws had no issues, so I was disappointed when this happened. Luckily, I have a few spares so I was able to use those. Like others have mentioned, the plastic part somehow is already peeling from bite (?) marks. I don’t bite down on the lid but it peels and flakes rather easily with not a lot of wear and tear. Lastly, I bought this 10 months ago and it already broke. The white plastic stopper piece that goes underneath the lid to protect it from leaking somehow fell off so if I don’t keep my bottle upright, the water seeps through the lid ... MoreWorks well but… The lid works well for the most part, but the straws that came with it melted in the dishwasher within one week of purchase. There were no directions not to put them in the dishwasher, and I figured my other straws had no issues, so I was disappointed when this happened. Luckily, I have a few spares so I was able to use those. Like others have mentioned, the plastic part somehow is already peeling from bite (?) marks. I don’t bite down on the lid but it peels and flakes rather easily with not a lot of wear and tear. Lastly, I bought this 10 months ago and it already broke. The white plastic stopper piece that goes underneath the lid to protect it from leaking somehow fell off so if I don’t keep my bottle upright, the water seeps through the lid everywhere. I thought hydroflask lids were made to last but apparently not. Overall, it works well but don’t expect this to last long. It hasn’t been a year, and I’m already looking for a replacement, and it won’t be this one
originally posted on hydroflask.com
I purchased 4 of these Wide Mouth Flex Sip Lids for me and my family's Hydro Flasks. They all leak! Once you take them apart to clean them, which we did when we first bought them, they leak all down your chin and all over your clothes. They leak between the top and bottom pieces. This is a design flaw! This truly is one of the most important parts of your product. Plus, your products are very expensive compared to many other similar/same products that we have purchased and had better results with. You need to have a superior properly working product if you expect customers to pay top dollar for your product. I am completely underwhelmed and unsatisfied with Hydro Flask products.
originally posted on nordstrom.com
I didn’t think that I would like this lead so much. I have now used it on several three day long walking events and all of the training leading up to them. What I like most about them is being able to take a big chug of water without it pouring all over my face while I am in the middle of walking. This lid is easy to clean. I take it apart and throw it in the dishwasher. One tip: if you take it on an airplane, which I often do, make sure that you keep the bottle upright and open the lid while the plane is climbing towards altitude. If you don’t, it might spray a bit when you open it up the lid the first time. This is true for straw caps too.
| Care instructions | Machine Wash, Hand Wash |
| Dishwasher compatible | Yes |
| Assembly required | No |
| Batteries required | No |
| Included components | lid (3 pieces) |
Hydro Flask Wide Mouth Lids- Accessory for Wide Mouth Water Bottle
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Wide Mouth Sip Lid
Delivery $9.95
Wide Mouth Flex Sip Lid Black| Hydro Flask | Matchbox
Delivery $12.50
Wide Mouth Flex Sip Lid Black
Delivery between 28 Sept – 7 Oct $10
Hydro Flask Wide Mouth Flex Sip Lid Black
Delivery $40.08
Works well but… The lid works well for the most part, but the straws that came with it melted in the dishwasher within one week of purchase. There were no directions not to put them in the dishwasher, and I figured my other straws had no issues, so I was disappointed when this happened. Luckily, I have a few spares so I was able to use those. Like others have mentioned, the plastic part somehow is already peeling from bite (?) marks. I don’t bite down on the lid but it peels and flakes rather easily with not a lot of wear and tear. Lastly, I bought this 10 months ago and it already broke. The white plastic stopper piece that goes underneath the lid to protect it from leaking somehow fell off so if I don’t keep my bottle upright, the water seeps through the lid ... MoreWorks well but… The lid works well for the most part, but the straws that came with it melted in the dishwasher within one week of purchase. There were no directions not to put them in the dishwasher, and I figured my other straws had no issues, so I was disappointed when this happened. Luckily, I have a few spares so I was able to use those. Like others have mentioned, the plastic part somehow is already peeling from bite (?) marks. I don’t bite down on the lid but it peels and flakes rather easily with not a lot of wear and tear. Lastly, I bought this 10 months ago and it already broke. The white plastic stopper piece that goes underneath the lid to protect it from leaking somehow fell off so if I don’t keep my bottle upright, the water seeps through the lid everywhere. I thought hydroflask lids were made to last but apparently not. Overall, it works well but don’t expect this to last long. It hasn’t been a year, and I’m already looking for a replacement, and it won’t be this one
I purchased 4 of these Wide Mouth Flex Sip Lids for me and my family's Hydro Flasks. They all leak! Once you take them apart to clean them, which we did when we first bought them, they leak all down your chin and all over your clothes. They leak between the top and bottom pieces. This is a design flaw! This truly is one of the most important parts of your product. Plus, your products are very expensive compared to many other similar/same products that we have purchased and had better results with. You need to have a superior properly working product if you expect customers to pay top dollar for your product. I am completely underwhelmed and unsatisfied with Hydro Flask products.
I didn’t think that I would like this lead so much. I have now used it on several three day long walking events and all of the training leading up to them. What I like most about them is being able to take a big chug of water without it pouring all over my face while I am in the middle of walking. This lid is easy to clean. I take it apart and throw it in the dishwasher. One tip: if you take it on an airplane, which I often do, make sure that you keep the bottle upright and open the lid while the plane is climbing towards altitude. If you don’t, it might spray a bit when you open it up the lid the first time. This is true for straw caps too.
Have owned multiple Hydro Flask products throughout the years, and this would be my second Flex Sip Lid. Ordered my third MyHydro this past July in a 32oz size. I was very excited to finally have a larger bottle. I had leaking from my bottle/lid almost immediately, and contacted customer service for a replacement lid. My 20oz bottle and Regular/Flex Sip Lid have worked perfectly for years! I was trying to avoid the fold-down straw version for easier cleaning. This worked well for about two weeks, and then started leaking again. Have tried removing/replacing the lid pieces, closing more tightly, etc. Nothing has helped. No matter what I do, I cannot have my bottle at all sideways, or it will leak. Customer service thinks it may be a threading issue of my bottle, but ... MoreHave owned multiple Hydro Flask products throughout the years, and this would be my second Flex Sip Lid. Ordered my third MyHydro this past July in a 32oz size. I was very excited to finally have a larger bottle. I had leaking from my bottle/lid almost immediately, and contacted customer service for a replacement lid. My 20oz bottle and Regular/Flex Sip Lid have worked perfectly for years! I was trying to avoid the fold-down straw version for easier cleaning. This worked well for about two weeks, and then started leaking again. Have tried removing/replacing the lid pieces, closing more tightly, etc. Nothing has helped. No matter what I do, I cannot have my bottle at all sideways, or it will leak. Customer service thinks it may be a threading issue of my bottle, but said I would need to cover shipping to send it in for warranty. I understand this must be a policy, but it is quite disappointing after spending ~$55 on a bottle. I'll be going back to my 20oz bottle for now and looking at other brands to order from.
These lids aren't perfect. The fact you can disassemble to clean it is great, but why is there not replacement parts available? All I needed was the red gasket inside the lid as mine had started to show wear and tear from daily use and cleaning, but they are not available.Also the old flip lid had fewer moving parts, did a great job at sealing while closed, and really wasn't difficult to clean. I still have an old flip lid I use on a 12oz for drinking coffee while skiing, I can confidently close it, throw it in a pocket for a run, then pull it out and sip coffee on the lift ride up. I can't trust this lid to do that.
Bought this for my boyfriend as a gift. We are both disappointed, it leaks terribly. Seems to be an overcomplicated non functional design. We finally figured out the round clear gasket seal under the top seems to be the culprit. The seal never stays in place and when it comes loose, everything leaks out the middle. Not great constantly spilling hot coffee all over.I have the old flip lid on my hydro for coffee use. It had worked great for a couple years and now also leaks (due to the 2 little rubber plugs inside the flip disintegrating over time with hot liquid). On top of that, my wide mouth hydro with straw lid was leaking water constantly, so I ordered a new one, and it also is leaking (water pools where straw top folds). If any of my hydro's are laying on ... MoreBought this for my boyfriend as a gift. We are both disappointed, it leaks terribly. Seems to be an overcomplicated non functional design. We finally figured out the round clear gasket seal under the top seems to be the culprit. The seal never stays in place and when it comes loose, everything leaks out the middle. Not great constantly spilling hot coffee all over.I have the old flip lid on my hydro for coffee use. It had worked great for a couple years and now also leaks (due to the 2 little rubber plugs inside the flip disintegrating over time with hot liquid). On top of that, my wide mouth hydro with straw lid was leaking water constantly, so I ordered a new one, and it also is leaking (water pools where straw top folds). If any of my hydro's are laying on their sides, they leak out. I now have multiple stains on my car seats due to non functioning lids.I really want to like hydro's, but for how pricey they are, these leaking issues needs to be figured out. My old Contigo snap top for coffee never leaked, and was much cheaper. Also my bf's Yeti he's used for years, for water, doesn't have any leaking issues either.
First of all, if you have this and it leaks after you have cleaned it, you probably put the seal in upside down. My first go at it left me with coffee streaks down the front of my white shirt. It's not obvious how it goes in, but put the text side of the seal up otherwise it is going to leak when you drink. Not right away though, but after two or three pulls just when you think it's safe.My issue with this thing is that you can't really sip hot beverages with any control. When you tilt it up to drink, there is a delay as the chamber inside the lid fills up, then it all comes out in a full flow. So if your beverage is too hot for a gulp but just right for a sip, you only get the full gulp and it burns. That full flow isn't the smoothest either, it just feels ... MoreFirst of all, if you have this and it leaks after you have cleaned it, you probably put the seal in upside down. My first go at it left me with coffee streaks down the front of my white shirt. It's not obvious how it goes in, but put the text side of the seal up otherwise it is going to leak when you drink. Not right away though, but after two or three pulls just when you think it's safe.My issue with this thing is that you can't really sip hot beverages with any control. When you tilt it up to drink, there is a delay as the chamber inside the lid fills up, then it all comes out in a full flow. So if your beverage is too hot for a gulp but just right for a sip, you only get the full gulp and it burns. That full flow isn't the smoothest either, it just feels strange, like it's gurgling out. Imagine drinking straight from a wine bottle with the aerator on it. It just hits your tongue weird and inconsistently. I don't want my coffee with air bubbles in it. Ergonomically as well, it has a mostly flat top, so it gives you the feeling you have to squeeze a little bit to keep it from dribbling out the corners of your mouth.I imagine after some use you'd get used to it with some muscle memory, but after a few days I still find myself in a thought process of how to drink out of this thing without burning myself or dribbling.If you're using this to drink cold drinks, I'd say buy it. For hot items though, unless you like that first sip to be a roll of the dice as to whether you get a tiny sip of "that's a little to hot still" or one solid pull of "I just scorched my mouth," I'd say find something else.
I have been happily using Hydro Flask products for almost a decade. I just don't get these new lids? The old lid was one piece and you could open and close easily with one hand. It was easy to clean. This lid is over engineered to the point of being ridiculous. There is an 8 step process for taking it apart to clean? There are 4 different pieces to take apart, clean, dry, and put back together every time? Are you joking? And to open it, you have to use 2 hands. I used to be able to reach down with one hand while driving or watching my kiddos soccer game, open the lid without even looking, drink it, and then close it without even looking. This one requires me to use both hands and try to keep driving. Who thought this was an improvement? It is just so silly. It isn't ... MoreI have been happily using Hydro Flask products for almost a decade. I just don't get these new lids? The old lid was one piece and you could open and close easily with one hand. It was easy to clean. This lid is over engineered to the point of being ridiculous. There is an 8 step process for taking it apart to clean? There are 4 different pieces to take apart, clean, dry, and put back together every time? Are you joking? And to open it, you have to use 2 hands. I used to be able to reach down with one hand while driving or watching my kiddos soccer game, open the lid without even looking, drink it, and then close it without even looking. This one requires me to use both hands and try to keep driving. Who thought this was an improvement? It is just so silly. It isn't better than the previous version, is actually worse in many ways. Such a shame. I wish I was able to buy the old version, not this overthought, over complicated version. It is crazy. Who thought this was a good idea or an improvement?
This lid came on my personalized bottle and it cannot be safely used anywhere but inside your house. If you use it at work, or outside, or on mass transit the place where your mouth goes is continuously exposed to every sneezy, sniffling, coughing, nose wiping person in your vicinity. Even if you twist it closed, your beverage is safe but the mouth piece still exposed. One errant sneeze by a co-worker or fellow passenger and your beverage is toast until you can wash the lid somewhere. Happened to me at work by accident and it was a building we were vacating so there was no where for me to wash and refill it. Peachy. Hydroflasks rock...just not this lid.
I used to love hydro flask and have used it for years (the coffe mug). Suddendly my old lid started to leak. So after a very long waiting period I finally got the new wide mouth flex sip. But I only have problems with it. It keeps leaking almost every second time I use it. I have not found out yet where the problem is but it is extremly annoying. It might just be me who is unable to adjust it properly, but I can't figure it out.I really loved the product for many years but now I would not reccomend it because it is leaking almost every day and I do not know how many shirts I have full of coffe because it leaks always very suddenly and unexpected....;(
| Care instructions | Machine Wash, Hand Wash |
| Dishwasher compatible | Yes |
| Assembly required | No |
| Batteries required | No |
| Included components | lid (3 pieces) |