Flip Cap - 28mm

28mm Cap Replacement
4.0
Rated 4.0 out of 5 stars
43
$5.00
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Material

Silicone, PP, POM

Weight

9 g / 0.32 oz

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Flip Cap - 28mm
Flip Cap - 28mm
Flip Cap - 28mm
Flip Cap - 28mm

Product Details

This replacement cap features an easy to drink from silicone nozzle which auto-seals after each sip and includes a flip cap cover to keep away outside elements.  Fits all current HydraPak products with a 28mm opening including the Stow 500ml and 1L bottles, and SoftFlask 150ml.

*Note that caps only fit on the 28mm threads of 2020 models or newer. Please review our FAQ page on how to identify which version you have.

 

Running

Weight

9 g / 0.32 oz

Material

Silicone, PP, POM

Reviews

4.0
Rated 4.0 out of 5 stars
Based on 43 reviews
Reviews Summary
Customers say this cap works great for their water bottles, with many praising its flip-top design for spill-free drinking and leak prevention. The cap threads work well with water filters, and users appreciate that it's replaceable. However, compatibility issues are a frequent concern—several customers report the cap doesn't fit certain bottle models or sizes, even when model numbers match. Some note it's difficult to twist on, and a few experienced leaking. Delivery and customer service issues were also mentioned by some buyers.
72%would recommend this product
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43 reviews
  • AC
    Anonymous C.
    Verified Buyer
    Reviewing
    Flip Cap - 28mm
    I recommend this product
    Rated 5 out of 5 stars
    4 weeks ago
    5 Stars

    5 Stars

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  • DG
    Danielle G.
    Verified Buyer
    Reviewing
    Flip Cap - 28mm
    I do not recommend this product
    Rated 1 out of 5 stars
    1 month ago
    The cap does not fit

    The cap does not fit on the water bottle and I matched the model numbers.

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    HydraPak
    1 month ago

    We are sorry to hear that the installation of your Flip Cap has been difficult. Please reach out to our warranty team if this issue has persisted: https://support.hydrapak.com/hc/en-us/requests/new?ticket_form_id=913128,Customer Experience,clientresponse

  • B
    bone
    Verified Buyer
    Reviewing
    Flip Cap - 28mm
    I do not recommend this product
    Rated 2 out of 5 stars
    7 months ago
    doesn't fit older model

    I had a Hydrapak bottle for which the cap broke. This replacement doesn't fit. The description should list that it fit newer models with the date.

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    HydraPak
    2 months ago

    We are sorry to hear that Flip Cap did not fit your old bottle. Please file a claim here: https://support.hydrapak.com/hc/en-us/requests/new?ticket_form_id=913128,Customer Experience,clientresponse

  • AC
    Anonymous C.
    Verified Buyer
    Reviewing
    Flip Cap - 28mm
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    5 Stars

    5 Stars

    Was this helpful?
  • O
    Orton
    Verified Buyer
    Reviewing
    Flip Cap - 28mm
    I recommend this product
    How old are you? 35 to 44
    What is your gender? Male
    Rated 5 out of 5 stars
    11 months ago
    Great replacement

    Great replacement for one I broke. Arrived quickly.

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