Find Your Store
Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help
Earn Rewards

Hydro Flask
Down Shift 14L Hydration Pack

4.526315789473684 out of 5 stars
19 Reviews



Down Shift 14L Hydration Pack

Keeping stability into account, the Down Shift keeps weight low and comfortable for superior fit on the bike, without skimping on the tech you want from your hydration pack. A large main compartment provides space to stash your gear, and Cold Flow tech keeps water chilly for 4+ hours on the trail.


  • Ride in comfort with this pack that shifts weight down
  • Low-positioned hydration reservoir boosts stability
  • Keep layers, tools, and essentials in large main compartment
  • Cold Flow technology keeps liquids chilled for 4+ hours
  • Neoprene sleeve with reflective lining insulates
  • External airflow design provides room to breathe while riding
  • Item #HYFZ019
14L (854cu in)
Shoulder Straps
adjustable, sternum straps
Waist Belt
Hydration Compatible
Reservoir Included
HydraPak IsoBound 2L Insulated Reservoir (included)
top zip
[internal] 1 zippered, 1 drop-in, 1 mesh
Gear Loops
Helmet Carry
18 x 10 x 7in
Claimed Weight
2lb 3oz
Manufacturer Warranty
limited lifetime

Overall Rating

4.5 based on 19 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 0 reviews
3 Stars - 2 reviews
4 Stars - 1 reviews
5 Stars - 15 reviews

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

July 7, 2022

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.

Alex MacDonald

Originally reviewed on

3 out of 5 stars

July 18, 2021


Would be nice if there was a side pocket for a water bottle to

Ricky Bobby

Originally reviewed on

3 out of 5 stars

January 4, 2021

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.

user image

Originally reviewed on

5 out of 5 stars

January 3, 2021

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.


Originally reviewed on

5 out of 5 stars

October 25, 2020

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.

user image

Originally reviewed on

5 out of 5 stars

September 15, 2020

Comfortable fit and keeps water ice cold!

After thinking about it for a long time I purchased this about one month ago and am so happy I decided to finally do it! I live in AZ where late summer is still very hot when hiking. I leave work and fill it up with ice water, hike 2-3 miles and still have ice in my pack when I'm done. Love, love, love this backpack! It has a comfortable fit and does not weigh me down. Great purchase!

Originally reviewed on

5 out of 5 stars

September 3, 2020

Game Changer!

Honestly this pack has been a total game changer! Though most seem to use it for biking, I've been using it for EVERYTHING this summer - biking, canoeing, hiking, etc. It's been a great hands-free way to stay hydrated and it's so comfy you almost forget that you're wearing it. I also get complements all the time. The pockets are also great for your phone, keys, ID, SNACKS - it's all you need!

Originally reviewed on

5 out of 5 stars

September 1, 2020

Best MTB backpack I've ever used

I typically hate wearing backpacks while biking. They are uncomfortable, sweating, and lack the proper storage for bike knick knacks. At least until now. The Hydro Flask backpack is one of the best. The water loads in the bottom, so the weight comfortably sits lower than your typically hydration pack, with better than average lumbar comfortability. I've recommended this to a few folks, and they also agree it's better than any other bike backpack. It's great for long rides, when you need a lot of water, snacks, and gear to get you through the ride. If I could give this more than 5 stars, I would.

user image

Originally reviewed on

1 out of 5 stars

August 9, 2020

Wow I'm disappointed

This is a super expensive pack, but I love the Hydro Flask water bottles so I trusted the brand enough to pull the trigger on this despite the cost. But holy mackerel is it not worth what I paid for it. Quality-wise it should have cost less than half what I paid. When I pulled it out of the packaging I literally cringed. I expected it to be an obviously durable, thick, substantive material. I expected the Hydro Flask level of quality. The cooling system is kind of a joke at this point and the water pack is small and the tube tastes bad. I'm just so disappointed. I wish I had never made this purchase.


Originally reviewed on

5 out of 5 stars

August 6, 2020

Everything you want in a bike backpack.

Before I wasn't the biggest fan of biking with a backpack but Hydroflask really outdid themselves with this pack. The fit is nice and snug, the straps are a bit too long, but that can be fixed. Once tightened down the pack sits nicely on the back and hardly moves even when ripping through nasty rock gardens are hitting the jump line on tiddlywinks. Also, there's not a whole lot of non sense and flare to the pack. everything has a purpose and I love how big the front pocket is! I love being able to keep my water ice cold especially on those hot summer days. the whole hydration system is perfect too! Really top notch!

user image

Originally reviewed on