PocketFlask™ 500ml

Low Profile Locking Flask
4.2
Rated 4.2 out of 5 stars
26
$18.00
Color Malibu
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Check Your Vest Compatibility

Check Your Vest Compatibility

Vest pockets vary. Flask dimensions matter. Use the Flask Fit Finder to ensure a secure, bounce-free fit.

Not seeing your vest? Visit the Flask Fit Finder page for manual vest measurement instructions.
Free US Shipping on Orders 45+
Free Shipping

We offer free shipping on all US orders where the subtotal is $45 or greater!

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30 Day Returns
Returns & Exchanges

We are happy to offer a 30 day return policy/satisfaction guarantee. If, for whatever reason, you are not happy we will exchange or refund your purchase.

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Beyond™ Lifetime Guarantee
Beyond™ Lifetime Guarantee

If you experience any failures due to the product's manufacturing or materials, we'll repair or replace the item for free.

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Material

TPU, PP, Silicone, POM

Dimensions

280 mm x 80 mm / 11 in x 3.1 in

Weight

32 g / 1.1 oz

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PocketFlask™ 500ml
PocketFlask™ 500ml
PocketFlask™ 500ml
PocketFlask™ 500ml
PocketFlask™ 500ml
PocketFlask™ 500ml
PocketFlask™ 500ml
PocketFlask™ 500ml

Product Details

Top to bottom, this is our lowest profile flask. It slips right into the snuggest run belts and leanest vest pockets. The new 28mm locking cap easily opens and closes with a touch of a thumb, preventing leaks and drips while in motion. Made for minimal distraction, the innovative pinch-welded bottom gives it a tapered profile and the low-diameter cap makes it comfortable to carry — no pokes or irritation.

Beyond Lifetime Guarantee Beyond Lifetime Guarantee
Lightweight TPU Lightweight TPU
Locking Cap Locking Cap
Packs Down Packs Down
Running

Capacity

500 ml / 17 fl oz

Weight

32 g / 1.1 oz

Dimensions

280 mm x 80 mm / 11 in x 3.1 in

Material

TPU, PP, Silicone, POM

Features

MADE FOR FIT

Ultra low profile flask and minimal cap design are specifically designed for the snuggest running belts and leanest vest pockets.

HIGH FLOW

Easy to drink bite valve auto-seals after each sip, eliminating annoying drips.

LOCKING CAP

28mm locking cap easily opens and closes with a touch of the thumb, preventing leaks and drips.

COMPRESSIBLE

Flexible design shrinks as you drink, minimizing water movement.

DURABLE

Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity.

100% BPA & PVC FREE

Wide working temperature range (can be frozen - max temp 60° C / 140° F).

Reviews

4.2
Rated 4.2 out of 5 stars
Based on 26 reviews
Product QualityRated 4.5 on a scale of 1 to 5
DurabilityRated 3.0 on a scale of 1 to 5
Ease of UseRated 4.5 on a scale of 1 to 5
81%would recommend these products
Slide 1 selected
26 reviews
  • A
    Anonymous
    Reviewing
    PocketFlask™ 500ml 2-Pack Malibu
    I do not recommend this product
    How old are you? 35 to 44
    Product Used For Trail Running
    Rated 1 out of 5 stars
    1 week ago
    Great idea but horrible durability

    I ordered these over the summer and used them for a few months before both developed holes. I only hand-washed them and used them about once a week. I filed a warranty claim and received replacements, which was awesome. The team was very responsive and quick to send replacements. After a few weeks of use, both of the replacements have developed holes. I would not buy these flasks again until they fix the material to make it more durable.

    HydraPak
    3 minutes ago

    I am sorry to hear that your PocketFlasks. We can gladly replace it under our warranty program, since it is not functioning as intended. Please file a claim here: https://support.hydrapak.com/hc/en-us/requests/new?ticket_form_id=913128

  • TR
    Tia R.
    Verified Buyer
    Reviewing
    PocketFlask™ 500ml 2-Pack Malibu
    I recommend this product
    How old are you? 25 to 34
    Product Used For Trail Running
    Rated 5 out of 5 stars
    2 weeks ago
    Running Belt Lifesaver!

    Switched to these after having too many leaking issues with my cheap Amazon ones. Love the twisting caps, they're so secure! Ive used them for a few weeks now in my Naked running belt with zero problems.

  • B
    billy
    Verified Buyer
    Reviewing
    PocketFlask™ 500ml
    I do not recommend this product
    How old are you? 35 to 44
    Rated 1 out of 5 stars
    1 month ago
    Out of Stock

    website said it was available, but it wasn’t, my order was refunded. why did you ask for a review?!

  • AC
    Anonymous C.
    Verified Buyer
    Reviewing
    PocketFlask™ 500ml 2-Pack
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    5 Stars

    5 Stars

  • KB
    Kyle B.
    Verified Buyer
    Reviewing
    PocketFlask™ 500ml 2-Pack
    I recommend this product
    How old are you? 35 to 44
    Rated 5 out of 5 stars
    2 months ago
    Best flask

    Just went on a 15 mile run. Did not come unlocked and spill a drop.