Cold Flow™: The revolutionary Cold Flow™ System includes an insulated reservoir, neoprene reservoir sleeve with reflective lining and articulated back panel to keep water cold for over 4 hours
HydraPak® IsoBound™ 2 L insulated sweat proof reservoir helps to maintain cold water temperature for hours
Insulating neoprene reservoir sleeve with reflective lining keeps heat out and reflects cold back in
Articulated back panel keeps space between you and your pack, letting air flow to avoid body heat transfer
HydraPak® IsoBound™ 2 L Insulated Reservoir
High-flow HydraPak® Blaster Bite Valve self-seals after each sip
HydraPak® Plug-N-Play™ connect system lets you easily disconnect the hose and remove the reservoir from your pack for convenient refilling
Padded back panel for added comfort
Fully adjustable shoulder, sternum and hip straps
Soft pocket for sunglasses or a phone
Helmet attachment loops
Chest strap with integrated whistle
Webbing for a bike light attachment
Key clip
Brand : Hydro Flask
Web ID: 20HFLU14LDWNSHFTHREC
SKU: 20463170
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Specifications
Weight
2.2 lbs.
Capacity
2 Liters
Dimensions
18” L x 10” W x 7” D
REVIEWS
4.6
89%
Recommended
41 Reviews
Received incentive
12 months ago
Hydropack Backpack
Absolutely love my purchase, happened to snag it on sale unexpectedly.
Was recommended to me by a guest in my hotel of all things.
And quite possibly the best purchase I’ve made in a long time.
High quality, better water bladder and seal than any other brand I have looked at.
Incredibly comfortable to wear.
Highly recommend this bag!
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Cristina R.
Received incentive
1 year ago
Amazing Brand 5 Star Quality .
Beautiful backpack . Designed very well and it looks good . Durable material .
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Jimmy S.
Received incentive
1 year ago
No Sweat Just Cold Crisp Water!
Perfect for short hikes! Keeps my water cold, fits a snack, a sweater, and my pup’s water bottle. . . plus it’s super lightweight and doesn’t leave me sweaty. My only wish? A few more exterior pockets like stretchy mesh pockets for security straps for quick-access gear. Otherwise, it’s my go-to trail pack!
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Nayika L.
Received incentive
1 year ago
Mostly Good.
Really nice organization pockets. I love the insulated compartment for the hydration bladder. Great color. My only complaints are: the back pack itself is a little heavy, the frame is a little rigid, and it’s a little too small.
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Sharon O.
Received incentive
1 year ago
Very Useful
Very useful for the hikes that the family and I does during weekends.
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Ana G.
Received incentive
1 year ago
I Water Plants In A
I water plants in a ranch and with 120 degree weather I love that I have cold water for four hours which is what it takes me to water. Loved it
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Dalton K.
Received incentive
2 years ago
Best Hydration Pack On Market!
Bought for trail riding on dirtbike it does amazing keeps cold for very long time especially if you put bladder in fridge night before. I honestly forget I even have it on its so comfortable. We are going to Colorado in a week and I'll be using this DAILY for hikes top notch highly recommend!!!
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2 years ago
Hydration Pack
I own two; different models from past years and is the only real option for bike riding in the summer for the desert. Water stored in frame mounted bottles is neither of sufficient quantity or temperature for sustainable performance. Hydro Flask hydration packs keeps your water cool and the easily accessible drink tube is safer then reaching for a frame mounted bottle and riding with one hand while hydrating.
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ReyMart
Received incentive
3 years ago
Much Smaller Than Expected
I bought this for daily hiking trips. While it is very stylish and appears to be very high quality, the backpack space is very small and can only fit a few things. It’s nice for day hikes but would not recommend for anything longer.
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Alex MacDonald
Verified Purchase
4 years ago
I Love The Down Shift Pack
I bought this pack for mountain biking. I am very happy with how comfortable it is to wear on rides. It does keep my water cool. I appreciate the quality of the closure on the bladder.
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Ricky Bobby
5 years ago
?
Would be nice if there was a side pocket for a water bottle to
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CPT CC
Verified Purchase
5 years ago
Small Main Compartment, Upgrades Needed
No one seems to have noted so far on reviews how small the main compartment is on this backpack. The water bladder and insulation system sits at the bottom of the bag, taking up all the space. The insulation pouch reminds me of those insulated lunch bags with the reflective material. If you are going to pack anything else in the backpack, you'll have about 1/2 to 1/3 of the length of the backpack left if you completely fill up the water bladder. If you get hot on your ride and layered up, your jacket will pretty much take up the remaining space along with any other snacks you may have packed.
Otherwise, there are two small compartments on the inside main compartment. Enough to put your keys/wallet/phone/energy bar. The external zipper is also small enough to store these items. But again the more you pack into these compartments, the less space there will be overall as it bulges into the main compartment.
Pros: comfy when it's on my back for bike rides (the chest and waist strap keep it pretty secure),the water does stay cold (with ice!).
Added upgrades that would be nice:
Side cargo nets for tossing your keys or an apple or extra water bottles. Placement of the water bladder in a more traditional manner (going along the back and length of the backpack)
I'll also be using this backpack for hikes and for the military on range days too.
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claireB
Verified Purchase
5 years ago
Awesome Backpack!
I just bought this and used it for the first time last weekend for a ski trip. This pack is sleek, the straps adjust easily, and it holds an ample amount of water for a day trip. Perfect for holding extra layers, snacks or whatever you may need. Great fit on my back and shoulders, I almost forgot I was wearing it.
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PRjoy98
Verified Purchase
5 years ago
Lives Up To The Hype!
I don’t typically review anything but this hydration pack is AMAZING!
Was able to have enough COLD water to hike 8+ miles at Zion National. The curved design helped to keep my back cool and the size was big enough to even keep my other camera lense.
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Jonesx2
Verified Purchase
5 years ago
Great Features....great Size !
This pack is top notch..unfortunately, it really doesn’t fit a woman....even one who is somewhat tall with fairly wide shoulders. Uncomfortable rub.