"This carousel displays a list of buttons that updates the main product image when a button is clicked"
Hydro Flask - Wide Mouth Flex Cap

Hydro Flask Wide Mouth Flex Cap

25% Off
$7.46 Original price:$9.95
Changing the size selection, or changing the selected color after selecting a size, may change the associated price

Select Style & Size

Select options
  • Select options
    • Sunflower, One Size
      sale $7.46
    • Watermelon, One Size
      sale $7.46



    Tech Specs

    stainless steel
    Manufacturer Warranty:

    Wide Mouth Flex Cap

    The last time you saw your water bottle's original cap, it was falling down a desert tower. Instead of searching the sands, replace it with Hydro Flask's Wide Mouth Flex Cap. Its stainless steel construction includes Honeycomb insulation to help you drinks stay cold or hot longer. The flexible loop is durable and convenient for hikes and bikes to summer concerts.

    • Water bottle cap fits Hydro Flask Wide Mouth bottles
    • Stainless steel construction with Honeycomb insulation
    • Flexible loop ideal for outdoorsy adventures


      Prefer this cap over others

      Great seal.

      • Familiarity: I've put it through the wringer

      Never had any issues with this lid leaking.

      best hydroflask lid

        The standard flip top lid is useless for anything other than getting coffee on your nose, and opening inside of your pack. this solves both of those issues.

        Versatility of Hydroflask

        • Familiarity: I've put it through the wringer

        I bought a 20 oz Hydroflask with a Coffee Lid and bought this lid to make the bottle more versatile while traveling or camping. Love it and us it daily


        • Familiarity: I've used it several times

        Love the soft plastic handle.

        what you expect

          just simple replacement caps for my current wide mouth hydro flasks. I wish there were other colors but black is fine. seals well as any one of their caps do

          No Leaks!

          • Familiarity: I've used it several times

          I've had issues with the flip top lid leaking in the past, soaking everything in my backpack. However with this lid I haven't had one leakage, so happy!

          Makes life easier

          • Familiarity: I've used it several times

          So much easier to carry your Hydroflask around with this thing.

          Miss the old, dont mind the new.

          • Familiarity: I've put it through the wringer

          I love this cap but I wish there was still an attachment to your bottle. I feel like I'm always losing this...

          Safety Mechanism

          • Familiarity: I've used it once or twice and have initial impressions

          Had some leaking issues with the flip cap so bought this as a backup for hiking/touring. Two thumbs up.

          Good replacement

          • Familiarity: I've put it through the wringer

          This is a great replacement design from the old screw on cap for my 64oz growler.

          Does the job!

          • Familiarity: I've put it through the wringer

          This does exactly what it is supposed to do, keep your water in your hydroflask and seam sealed to ensure your water/bevy is cold/hot! Easy to use and functional, love the loop to easily carry with you or clip with a carabiner to your pack if there is just no more room. Grabbed an extra just in case!

          Lid for WATER!!

          • Familiarity: I've put it through the wringer

          My Hydro came with a flip lid and it was great for hot liquids but just wasn't right for water. This lid is perfect if you're using your wide mouth Hydro for water. The handle is super super nice as well.

          New design

          • Familiarity: I've put it through the wringer

          My first Hydro Flask bottle is almost 5 years old, new cap fits good.

          Hi, I have an old-style plastic cap as well. Is the bottom of the cap stainless steel because parts of the plastic of the old cap would flake off after filling the bottle with hot liquids. And is the loop sturdy? I have the large 64oz bottle so it gets really heavy when filled up.

          So nice to hold!

          • Familiarity: I've put it through the wringer

          Makes carrying a wide mouth so nice to hold or easy to strap on. Love it on my 20 oz for my weekend camping trips! Get one if you don't have it!

          I prefer holding onto the loop of the wide a lot over the standard one! Must have for any wide mouth hydro.

          Works well

          • Familiarity: I've used it several times

          always nice to have some options with hydro flask lids and this one is a nice addition to the collection.

          Upgrade time

            I upgraded my hydro flask caps to the new design as the old ones sucked. Much welcomed design change.

            Love me a hydroflask!

              I have Hydroflasks in just about every size but he big boy is my favorite (50 oz.); doubling as both a super-sized hydration device and a weapon should you need something to hit an offender over the head. But really thank you Hydroflask for keepin' all my bevies cold.

              A cap

                I got this as a extra cap for my smaller hydroflask that came with a sip lid. Works great!


                  Nice to have lid options for my hydroflask, since it will last forever. Swap this out for the straw lid when you need the gear loop.