Replace a lost lid, or just up your insulation game with this Flex Sip Cap. Honeycomb insulation helps keep your drink the right temperature. Leakproof so you can sip and transport your bevvies without worry. Fits all wide-mouth Hydro Flask Bottles. Soft TPU handle running on a stainless steel pivots. Dishwasher safe and recyclable PP#5.
Replace a lost lid, or just up your insulation game with this Flex Sip Cap. Honeycomb insulation helps keep your drink the right temperature. Leakproof so you can sip and transport your bevvies without worry. Fits all wide-mouth Hydro Flask Bottles. Soft TPU handle running on a stainless steel pivots. Dishwasher safe and recyclable PP#5.
in 2 offers
The lowest price for Hydro Flask 16oz / 473ml Wide Mouth Cactus right now is $49.99 at Natural Necessity Surf Shop, compared across 2 retailers.
The all-time low was $29.99 on 19 June 2025 — today's price is 67% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 8 Nov 2026.
Hydro Flask 16oz / 473ml Wide Mouth Cactus
Replace a lost lid, or just up your insulation game with this Flex Sip Cap. Honeycomb insulation helps keep your drink the right temperature. Leakproof so you can sip and transport your bevvies without worry. Fits all wide-mouth Hydro Flask Bottles. Soft TPU handle running on a stainless steel pivots. Dishwasher safe and recyclable PP#5.
Replace a lost lid, or just up your insulation game with this Flex Sip Cap. Honeycomb insulation helps keep your drink the right temperature. Leakproof so you can sip and transport your bevvies without worry. Fits all wide-mouth Hydro Flask Bottles. Soft TPU handle running on a stainless steel pivots. Dishwasher safe and recyclable PP#5.
Last updated at 08/11/2026 07:30:55
HF Coffee 16oz (473ml) Sip, Cactus
Delivery between 11–20 Nov $9.95
16 Oz Wide Flex Sip Lid
Delivery between 11–16 Nov $19
originally posted on REI
I have an older Hydro Flask travel coffee bottle with their old lid design and it always leaked. This one doesn't leak at all. And I don't find it difficult to take apart the lid for cleaning nor put it back together. Like my previous Hydro Flask, this keeps your coffee good and warm for a long time, at least a couple hours.
originally posted on moosejaw.com
I bought this item for my daughter after purchasing several smaller sizes for others in my family. She loved her smaller one so much she wanted to graduate to this size. She uses it for everything when she is at school and she especially loves how easy it travels. The pourer feature (locks to travel) is ingenious. I will probably end up buying more this Christmas in this size for the rest of the family.
originally posted on REI
I'm SO disappointed in the Hydro Flask Coffee Flask! I love my Hydro Flask water bottle because it keeps my ice water cold all day (ice cubes are still in there the next day!) So I was excited to try the coffee flask, thinking it would keep my coffee hot for hours. The big problem is the opening in the lid. I keep burning my top lip with every sip. At first I thought the problem was that the lid isn't deep enough. But now I think that the shape of the opening is wrong. It's rectangular/blocky and lets coffee exit the cup too high up, hence my burnt top lip. I shouldn't have to adapt how I drink to make the flask work, so unfortunately, it has to go back. Such a bummer because I love the color and look.
HF Coffee 16oz (473ml) Sip, Cactus
Delivery between 11–20 Nov $9.95
16 Oz Wide Flex Sip Lid
Delivery between 11–16 Nov $19
I have an older Hydro Flask travel coffee bottle with their old lid design and it always leaked. This one doesn't leak at all. And I don't find it difficult to take apart the lid for cleaning nor put it back together. Like my previous Hydro Flask, this keeps your coffee good and warm for a long time, at least a couple hours.
I bought this item for my daughter after purchasing several smaller sizes for others in my family. She loved her smaller one so much she wanted to graduate to this size. She uses it for everything when she is at school and she especially loves how easy it travels. The pourer feature (locks to travel) is ingenious. I will probably end up buying more this Christmas in this size for the rest of the family.
I'm SO disappointed in the Hydro Flask Coffee Flask! I love my Hydro Flask water bottle because it keeps my ice water cold all day (ice cubes are still in there the next day!) So I was excited to try the coffee flask, thinking it would keep my coffee hot for hours. The big problem is the opening in the lid. I keep burning my top lip with every sip. At first I thought the problem was that the lid isn't deep enough. But now I think that the shape of the opening is wrong. It's rectangular/blocky and lets coffee exit the cup too high up, hence my burnt top lip. I shouldn't have to adapt how I drink to make the flask work, so unfortunately, it has to go back. Such a bummer because I love the color and look.
The stainless steel rim under the lid lets the liquid inside lose heat very quickly. In Texas winter (40C), expect very hot liquid to retain heat for no more than 4 hours if half full or 5 hours if full. End of 4 to 5 hours, the liquid will be lukewarm.Coming to the lid, it is not comfortable to sip hot coffee directly. You will burn your tongue until you learn to tilt it very very slowly and let small amount of coffee to get in your mouth. My suggestion would be to pick a regular lid and pour the coffee into a cup and have instead of spending the extra on this fancy (non-functional) lid.I will definitely not recommend this product to anyone.
I rarely review products, but this one upsets me so often I want others to know. This flask is overall average in terms of thermal capability, but the flex sip lid is very frustrating. When screwed on tightly and in the closed position, it leaks in my bag. When drinking from it, the liquid will dribble down my chin (while the lid is also screwed on properly.) I believe it is because some liquid gets caught in a space where the two parts of the lid are joined. If it’s water, it is just annoying. When I forget and use it for coffee or matcha, and its either getting in my bag or dribbling down my chin, is very frustrating.
I really like this hydro flask. I bought it to use for coffee on-the-go and it does a great job of keeping it hot all day. Love the new lid design too—though I don’t love that it’s backwards in respect to the usual “righty righty lefty loosey,” but that’s really not a big deal. I also like to use it for water when I’m doing a shorter hike and don’t want to carry my bigger hydro flask. Really love the Sunflower color—bought it to bring a little sunshine to my days at work. :)
It’s the right size, good for one small cup of coffee. I particularly like the kid’s handle. It’s easy to throw on a carabiner when empty. The twist lid seals tight and is a 1/4 turn to open. This can occasionally be challenging with gloves. Additionally, the lid can be taken apart for cleaning. It is my morning walk coffee mug.
Great to keep things super hot but the design of the mouth opening is terrible!! When trying to take your first sip of hot coffee it burns the heck out of your top lip!! Thought it was just me but my husband had the same problem with his. Then after having it for a few months not using it every day but maybe a few times it started to leak. First I thought it was becasuse I just washed it but I put a napkin by the leak and it was defiantly coffee leaking!Bummer cuz it really keeps things hot for a long time! Going to try and return them.
I so badly want to love this hydroflask. But the one major flaw sadly and frustratingly is the friggen lid! I think it might have been way overdesigned. The goos thing about the lid I guess, is that you can completely disassemble it and clean it thoroughly. The problem with all of those moving parts however, is that liquid gets trapped in those little spaces in the lid (which is comprised of two plastic parts connected by a rubber washer or flange essentially. So all that space in between the two plastic parts catches excess liquid after every sip! And so you'll never not have some dribble after you're done sipping. So if you care about the interior of your bag or your car or anything else, don't count on this cup to not dribble that excess liquid all over it. You ... MoreI so badly want to love this hydroflask. But the one major flaw sadly and frustratingly is the friggen lid! I think it might have been way overdesigned. The goos thing about the lid I guess, is that you can completely disassemble it and clean it thoroughly. The problem with all of those moving parts however, is that liquid gets trapped in those little spaces in the lid (which is comprised of two plastic parts connected by a rubber washer or flange essentially. So all that space in between the two plastic parts catches excess liquid after every sip! And so you'll never not have some dribble after you're done sipping. So if you care about the interior of your bag or your car or anything else, don't count on this cup to not dribble that excess liquid all over it. You also have to get that runner washer thing perfectly lined up the right way or it will get even worse. I want this cup to be the perfect cup for me. Especially because it has a handle and is matte black! But unfortunately it looks like I'll be returning it. The most frustrating part to me is that the most reliable to go coffee cup that I've ever owned was a cheapo from target that merely had a flip up lid piece that stayed secure and never leaked EVER! I've had many since I lost that one, and none have ever been as reliable or dependable. Ain't that some crazy ish?
Let's start with vanity: I get compliments on this mug all the time and that's great. Okay, with that out of the way, I can talk about function. This is also a really functionally-good coffee mug. You may use it with the flex lid for convenience and to retain heat, but you may also take the lid off and comfortably sip on your coffee without the lid while it cools down because it has a nice rounded lip. I use this mug without a lid a lot because I frequent coffee shops and often find that the coffee is too hot for my not-the-human-torch palate when I first get it, so I can back up my claims with experience. For those who care: this does not fit in the 2016 Subaru Outback center cup holders without taking the rubber insert out, however it does fit in the door holders.
