Journey Series

20 L Hydration Pack

$200.00
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Journey Series

20 L Hydration Pack

$200.00

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$200.00

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The Revolution of Cold Chilled for 4+ hours

Our Journey Series™ Insulated Hydration Packs offer the revolutionary insulation you expect from Hydro Flask, with our Cold Flow™ system that keeps water cold for over four hours. The insulated reservoir and neoprene sleeve with reflective lining maintain cold water temperature, while the articulated back panel lets air flow between you and your pack to prevent body heat transfer. Our Insulated Hydration Packs are the perfect solution to stay cool on your favorite ride, with enough capacity for trail essentials. Stay refreshed and enjoy the journey.

20 L Hydration Pack Lifestyle Image

Revolutionary Cold Flow™ System keeps water cold for over 4 hours.

Our revolutionary Cold Flow™ System includes the first ever insulated reservoir, neoprene reservoir sleeve with reflective lining and articulated back panel to keep water cold for over 4 hours.

Cold Flow System

Insulated Reservoir

HydraPak® IsoBound™ 3 L insulated sweat proof reservoir helps to maintain cold water temperature for hours.

Insulated Reservoir

Neoprene Sleeve with Reflective Lining.

Insulating neoprene reservoir sleeve with reflective lining keeps heat out and reflects cold back in.

Neoprene Sleeve

External Airflow Design

Articulated back panel keeps space between you and your pack, letting air flow to avoid body heat transfer.

External Airflow Design
  • Cold Flow™ System

    Cold Flow™ System

    Cold water for over 4 hours.

    Our revolutionary Cold Flow™ System includes the first ever insulated reservoir, neoprene sleeve with reflective lining and articulated back panel to keep water cold for over 4 hours.

  • Comfortable Fit

    Comfortable Fit

    Advanced construction for maximum comfort.

    The right combination of fabric, padding and design make for a comfortable fit no matter where your journey takes you.

  • Watertight Construction

    Watertight Construction

    Rain? No problem.

    Durable coated waterproof fabric with taped seams and coated zippers helps keep moisture out leaving your items dry.

  • Lifetime Warranty

    Lifetime Warranty

    We stand behind our products.

    Hydro Flask guarantees this Hydro Flask product with a limited lifetime warranty against manufacturer defects.

Product Details

  • Revolutionary Cold Flow™ system keeps water cold for over 4 hours
  • Articulated back panel follows the curvature of the spine in one seamless piece for optimal comfort
  • Molded padded back panel with center mesh for added ventilation
  • Fully adjustable shoulder, sternum, and hip straps
  • Durable coated waterproof fabric with taped seams and coated zippers helps keep moisture out, leaving your items dry
  • Puncture, tear, and abrasion resistant, yet lightweight
  • High-flow HydraPak® Blaster™ Bite Valve self-seals after each sip and features a twist on/off bar to prevent leaks when not in use
  • HydraPak® Plug-N-Play™ connect system lets you easily disconnect the hose (an auto shutoff valve prevents leaking) and remove the reservoir from your pack for convenient refilling
  • Removable magnetic hose clip for easy access to water on the move
  • Two separate internal compartments with stretch mesh pockets for easy organization
  • Easy access top pocket
  • Easy access side pocket for smaller trail essentials
  • Webbing for a bike light attachment
  • Reflective hits for low light rides to and from the trail

Specs

20 L
Volume 20 L
Weight S/M 3.5 lbs
M/L 3.6 lbs
Series Journey Series
Best Use Mountain Biking
Water Capacity 3 L
Dimensions S/M – 18.5” H x 11.5” W x 10.2” D
M/L – 20” H x 11.5” W x 10.2” D
Number of Exterior Pockets 4
Gender Unisex

Revolutionary Cold Flow™ System keeps water cold for over 4 hours.

Our revolutionary Cold Flow™ System includes the first ever insulated reservoir, neoprene reservoir sleeve with reflective lining and articulated back panel to keep water cold for over 4 hours.

Cold Flow System

Insulated Reservoir

HydraPak® IsoBound™ 3 L insulated sweat proof reservoir helps to maintain cold water temperature for hours.

Insulated Reservoir

Neoprene Sleeve with Reflective Lining.

Insulating neoprene reservoir sleeve with reflective lining keeps heat out and reflects cold back in.

Neoprene Sleeve

External Airflow Design

Articulated back panel keeps space between you and your pack, letting air flow to avoid body heat transfer.

External Airflow Design
  • Cold Flow™ System

    Cold Flow™ System

    Cold water for over 4 hours.

    Our revolutionary Cold Flow™ System includes the first ever insulated reservoir, neoprene sleeve with reflective lining and articulated back panel to keep water cold for over 4 hours.

  • Comfortable Fit

    Comfortable Fit

    Advanced construction for maximum comfort.

    The right combination of fabric, padding and design make for a comfortable fit no matter where your journey takes you.

  • Watertight Construction

    Watertight Construction

    Rain? No problem.

    Durable coated waterproof fabric with taped seams and coated zippers helps keep moisture out leaving your items dry.

  • Lifetime Warranty

    Lifetime Warranty

    We stand behind our products.

    Hydro Flask guarantees this Hydro Flask product with a limited lifetime warranty against manufacturer defects.

Details & Specs

Product Details

  • Revolutionary Cold Flow™ system keeps water cold for over 4 hours
  • Articulated back panel follows the curvature of the spine in one seamless piece for optimal comfort
  • Molded padded back panel with center mesh for added ventilation
  • Fully adjustable shoulder, sternum, and hip straps
  • Durable coated waterproof fabric with taped seams and coated zippers helps keep moisture out, leaving your items dry
  • Puncture, tear, and abrasion resistant, yet lightweight
  • High-flow HydraPak® Blaster™ Bite Valve self-seals after each sip and features a twist on/off bar to prevent leaks when not in use
  • HydraPak® Plug-N-Play™ connect system lets you easily disconnect the hose (an auto shutoff valve prevents leaking) and remove the reservoir from your pack for convenient refilling
  • Removable magnetic hose clip for easy access to water on the move
  • Two separate internal compartments with stretch mesh pockets for easy organization
  • Easy access top pocket
  • Easy access side pocket for smaller trail essentials
  • Webbing for a bike light attachment
  • Reflective hits for low light rides to and from the trail

Specs

20 L
Volume 20 L
Weight S/M 3.5 lbs
M/L 3.6 lbs
Series Journey Series
Best Use Mountain Biking
Water Capacity 3 L
Dimensions S/M – 18.5” H x 11.5” W x 10.2” D
M/L – 20” H x 11.5” W x 10.2” D
Number of Exterior Pockets 4
Gender Unisex

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Reviews/Q&A

  • Reviews

  • Q & A

  • 20 L Hydration Pack is rated 4.6 out of 5 by 26.
    Rated 4 out of 5 by from Almost perfect I am a mountain bike guide in Moab Utah, I love this pack the way it’s made, durability, comfortability and sleek look, the magnet connections needs to be strong (its flops around alot on a bike ride) and the zipper on lie are getting ready to break because they are big and there is only a single zipper which can make packing it full hard, i know the double zipper would make it a bot less water resistant but not enough to matter and should make it easier to pack full. Other then those minor things, ive guided with almost all brands of packs and this one is a beautiful design and great comfort
    Date published: 2019-08-27
    Rated 4 out of 5 by from Good quality pak This is great to have if you go hiking, camping and other outdoor activities. Keeps water cold for more than 4 hours. This particular hydration pack holds 20 liters of water. Looks just like a backpack, easy to carry but somewhat uncomfortable since the back is not the softest material. Has a bit of weight to it, before water is added. It is leak proof and the blaster valve is easy to use. The park doesn't sweat so no worries getting soaked from wearing it. Also has extra pockets for your keys, phone and ect. So far, its held up well for me and is really good quality. Only thing, use more padding to make it softer for our shoulders and backs. Its quiet stiff and uncomfortable
    Date published: 2019-05-24
    Rated 4 out of 5 by from worked great! this was something ive wanted to try for when we go on family hikes. With all the kids and my husband and i as well as at times we take our dogs as well its always been hard to load up with enough water bottles for everyone and trying to get the kids to carry anything isnt easy. Last weekend we went on a hike at a local park and took along the hydration pack it was amazing easy to use and i was a little skeptical on the claim it would stay cold up to 4 hours i didnt time it exactly but it did stay cold for the hike it was easy to wear the backpack and it had nice features that even were bonus definitely would recommend this for hiking and or camping
    Date published: 2019-05-17
    Rated 3 out of 5 by from A good first attempt Hydroflask has managed a compelling first attempt at a hydration pack. The materials and quality of construction are top notch for the most part. Importantly the insulation works as advertised. Unfortunately it’s not perfect. I’ve gotten used to every mtb pack having a key clip, which this pack doesn’t have. It’s a small detail, but seems to be the norm for the category. The pack has held up very well except for the insulation sleeve, the foil is ripping and tearing. On the bike performance is hindered due to the large size and weight of the pack. I’m interested to see the next generation of this pack. Hopefully it will be more svelte and have a key clip, while maintaining the insulation properties. As it stands I would not recommend this pack for cycling, perhaps it is better suited to hiking though.
    Date published: 2019-10-02
    Rated 2 out of 5 by from HydraPak® Plug-N-Play and Size are issues Purchased both sized backpacks in July 2019 and have come to the determination that the 20 L pack is far too small and the HydraPak® Plug-N-Play™ connect system is very annoying. When it comes to size, it is very difficult to get items into the bag along with removing them. Additionally there is absolutely no give/stretch in the bag. When referring to the Plug-N-Play system, the magnet is far too weak and as I would move around it would constantly come loose. I ended up spending more time trying to adjust the hose then pay attention to the hike. There are some positives though! The water proof element is incredibly nice as I had one hike where it started to rain rather hard and everything in the bag was perfectly fine. The straps and the suspended mesh back panel are incredibly nice for someone with a sweaty back. At the end of the day, I could live with the size, but the Plug-N-Play system is a deal breaker. Not only is it a frustration, but can be a costly distraction and can get in the way at the worst possible times. I would return the bag if I could, but sadly going to have to purchase something else.
    Date published: 2020-01-12
    Rated 2 out of 5 by from Durable but small Bought this for a hiking trip and while the bladder was great, when it was full there was little to no space in the 20L bag
    Date published: 2019-05-22
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