Wide Mouth Flex Sip™ Lid
Wide Mouth Flex Sip™ Lid is rated 4.5 out of 5 by 146.
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£13.50

Wide Mouth Flex Sip™ Lid

Wide Mouth Flex Sip™ Lid is rated 4.5 out of 5 by 146.
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£13.50
Size Chart
Hydro Flask Pack Size Chart
Available Sizes S/M M/L
Torso
Measurement
18 - 19 in 19 - 22 in
43 - 48 cm 48 - 56 cm
Hip
Measurement
22 – 46 in 26 – 46 in
56 – 117 cm 66 – 117 cm
  1. 1. Torso Measurement

    • A. Bring your chin to your chest and feel for the most prominent bony bump where the slope of your shoulders meets the back of your neck. This is your C7 vertebra and the top of your torso measurement.

    • B. On each side of your body, feel for the top of your hip bones, just below the sides of your ribs. With fingers pointing forward and thumbs pointing backward, draw an imaginary line between your thumbs. This is the bottom of your torso measurement.

    • C. Stand up straight and ask a friend to measure the distance between your C7 vertebra and the imaginary line between your thumbs using a flexible measuring tape. That’s your torso measurement. If you are between pack sizes, go with the smaller size.

  2. 2. Hip Measurement

    Although your torso measurement is the best indicator of your pack size, it’s still important to check your hip size when using a hipbelt. To find your hip measurement, wrap a flexible tape measure around the top of your hip bones, just below the sides of your ribs. This measurement is slightly higher than your waistline

Flex Sip™ Lid - Wide Mouth | Hydro Flask
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Product Benefits

  • Twist opening for easy on-the-go sipping
  • BPA-Free
  • Compatible with all Wide Mouth bottles
  • Lifetime Warranty
Technology
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Comfortable carry

Easy to transport; comfortable to carry.

Worry-free transport

Reliably sip and transport your drink without worry

Easy sip

Designed for hot liquids, but versatile enough for any drink.

Easy clean

Simple, design that is easy to disassemble and clean.

Let's Go!

Today is wide open. You lead, we'll follow.

#HeyLetsGo

Hydro Flask supports non-profit organisations focusing on building, maintaining, restoring and providing better access to parks. Since 2017, we have been doing just that:

  • 92 Non-profits supported non-profits.
  • $1.5 million Dollars (approx. £1.197 million) donated donated.
  • 26,043 Bottles donated bottles.
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  1. £29.95
    16 oz (473 ml) Coffee with Flex Sip™ Lid
    Colours Available
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Reviews
Rated 5 out of 5 by from Wonderful cap! Easy to use, easy to clean, handy carry strap, has a red dot indicator so I don't have to guess whether it's open / closed. It's a vast improvement over their Hydro Flip cap which easily breaks when dropped. Fits my similarly-sized Klean Kanteen thermoses. I also have Klean Kanteen's Cafe Cap 2.0. It too is leakproof but it has 5 pieces to take apart for cleaning; this one only has 4. I've only had this for one day so I don't know how durable or leakproof it will be in the long run. HydroFlask's website does not offer replacement gaskets; hope they will in future.
Date published: 2020-10-12
Rated 5 out of 5 by from Fantastic It’s a little tough to unscrew but love it!! Makes drinking easier and no liquid drips on the nose.
Date published: 2020-10-12
Rated 5 out of 5 by from Easy for kids, no spills My daughter loves the functionality of the sip lid.
Date published: 2020-09-29
Rated 5 out of 5 by from The Best I bought this lid for me and my girlfriend about a year ago when it was released and it is the BEST thing that hydro flask has created! I don’t personally like drinking out of the wide mouth openly because I’m clumsy and it spills all over me so this lid is even a great replacement for just drinking water through! Definitely a thumbs up!
Date published: 2020-09-25
Rated 5 out of 5 by from Much improved I have all of the lids and this is easily my favorite. It eliminates the ice blockage situation on the older sip style lid and it pours way faster.
Date published: 2020-09-16
Rated 5 out of 5 by from Love it Unpurchased this for my daughter after she had cracked hers at softball practice. I thought maybe I had gotten the wrong size but nope it was right. Happy daughter to have her hydro flask back so happy mom since I don't have to hear her complaining about it.
Date published: 2020-09-16
Rated 5 out of 5 by from Very functional. I purchased this a couple of weeks ago and it has been great. The one flaw I have found is that I'm still not used to the direction for opening and closing which seems to be opposite to most things (righty, tighty--lefty loosey).
Date published: 2020-09-14
Rated 5 out of 5 by from The perfect lid I love this lid. It's easy to use and is great to drink out of. It doesn't leak even when I've tossed it in a backpack to do a hike, and my coffee is always hot when I take a sip.
Date published: 2020-09-08
Rated 5 out of 5 by from Great Cap Recently purchased this as an alternative to the wide mouth lid that has to be removed every time you want a drink. I didn't want to get the straw lid since the handle hole was so small. I was so happy when this Flex Sip Lid was introduced! Same great handle as the standard lid but with the ease of drinking. There is a red tab on the inside to let you know if the lid is closed or not. I haven't had any spills or issues yet! This keeps my water cold all day.
Date published: 2020-09-03
Rated 5 out of 5 by from It really, truly, actually seals tight! I recently used one of my coffee flasks + this lid as a cocktail shaker to whip up a batch of ice cold margs and there was not one single leak even though I was shaking it around like a crazy person.
Date published: 2020-09-02
Rated 5 out of 5 by from Good Quality Lid We use hydro flask and other brands of insulated drink containers daily. This is a great option for the hydro flask products. I prefer this to the other options. It seems very well made and worth the investment!
Date published: 2020-08-25
Rated 5 out of 5 by from Nice lid I was able to put this lid on a cup and use it as a re usable cup . I love that it is hard to spill and that it is fire grip so you can’t drop it . Also your able to open and close it. The whole isn’t too small so it’s easy to drink out of as well I definitely recommend this
Date published: 2020-08-19
Rated 5 out of 5 by from Easy to use this is really great stuff. great sip lid so far, liked its Solid material and this is perfect in size that fits my existing bottle. Easy to use and leak free. I would highly recommend this product to family and friends
Date published: 2020-08-18
Rated 5 out of 5 by from Best Lid Out There I am extremely picky with water bottles. I like Hydro Flask as I believe they have the most aesthetic looking water bottles. I am not a fan of the original cap as it was a not quick and easy to get a drink. This lid solves everything as it has a perfect handle and allows you to chug water. I drink a lot of water and this is everything I wanted. I have had no issues with leaking at all and I have just ordered a boot to protect my flask for the long term. Very Satisfied
Date published: 2020-08-17
Rated 5 out of 5 by from Fits perfectly I was so excited for this never had a hydro flask and this lid is amazing spillproof an leak proof have plenty of friends and family to tell about this amazing hydro flax lid will be buying again real soon
Date published: 2020-08-17
Rated 5 out of 5 by from Much improved coffee lid This coffee lid is much improved over the previous. Its easy to clean all the parts and gaskets. It doesn't leak coffee too.
Date published: 2020-08-17
Rated 5 out of 5 by from easy to clean I love this product. Pros: It opens easily and has a red mark, so you know it is closed. When it is closed it does not leak. For cleaning it is easy to take apart, which is great so you know it can be sanitized.
Date published: 2020-08-17
Rated 5 out of 5 by from Seals great this lid works very well on my hydroflask. It is wider and easier to drink out if as well. When I put it into place, it seals great and I do not have to worry about leakage. I recommend this for your hudroflask too It works with hot or cold beverages.
Date published: 2020-08-17
Rated 5 out of 5 by from No ice blockage! I bought 2 of these. My husband and I have had our Hydroflasks for over 5 years now and decided to try these lids. Great flow of water, with no ice blockage!
Date published: 2020-08-12
Rated 5 out of 5 by from Great Lid I love this lid. Its very easy to clean and put back together. I love that the lid comes apart into 3 different pieces to make sure its Completely clean. its very simple to take apart and reasemble it takes only a minute to do both.
Date published: 2020-08-12
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Questions

do you just have to use coffee to use the flex lid or can you use any drink

Asked by: Eddy081806
Any drink
Answered by: Pockets
Date published: 2020-10-06

Is this lid compatible with the Wide mouth trail series bottles?

Asked by: Ryan0313
All wide mouth
Answered by: Pockets
Date published: 2020-10-06

dose this product work the the 40oz wide mouth?

Asked by: sjs0050
Fits all wide mouth 
Answered by: Pockets
Date published: 2020-10-06

Does this lid insulate just like the wide mouth flex cap which is made with honeycomb insulation?

Asked by: Kprizzle
No, it is not made with the honeycomb insulation.
Answered by: Consumer Service
Date published: 2020-08-16

Is this compatible with the previous generation of coffee flasks?

Asked by: gilo1246
Yes.
Answered by: Consumer Service
Date published: 2020-07-13

Would you be able to use a straw with this lid?

Asked by: agnes28
Unfortunately, no. The mouth opening is not a hole that goes clear down. This is what helps make this product leak proof.
Answered by: Consumer Service
Date published: 2020-04-29

I’ve had this lid for about 2 weeks cleaning daily. This morning I cleaned it, put back together and is now leaking between the top and bottom pieces. I don’t understand what is different or if I lost a piece while cleaning?

Asked by: Problemmaker
We'd be happy to replace your cap for you under our Lifetime Warranty. Please fill out a warranty claim via our website: (http://www.hydroflask.com/warranty/). Once you’ve submitted your warranty, a claim number will be emailed to you within 2-3 business days.
Answered by: Consumer Service
Date published: 2020-04-29

Will this lid work well for drinking water or only coffee? 

Asked by: Ddanny
It can be used for any liquid. We advertise for coffee but it is not limited to just coffee.
Answered by: Consumer Service
Date published: 2020-03-28
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Hydro Flask supports non-profit organisations focusing on building, maintaining, restoring and providing better access to parks. Since 2017, we have been doing just that:

  • 92 Non-profits supported non-profits.
  • $1.5 million Dollars (approx. £1.197 million) donated donated.
  • 26,043 Bottles donated bottles.
You May Also Like
  1. £29.95
    16 oz (473 ml) Coffee with Flex Sip™ Lid
    Colours Available