Sierra Designs Flagstaff 4L Hydration Pack - Black - image 1 of 4Sierra Designs Flagstaff 4L Hydration Pack - Black - image 2 of 4Sierra Designs Flagstaff 4L Hydration Pack - Black - image 3 of 4Sierra Designs Flagstaff 4L Hydration Pack - Black - image 4 of 4
Sierra Designs Flagstaff 4L Hydration Pack - Black - image 1 of 4
$34.99When purchased online

About this item

At a glance

Water-Resistant
Water-Resistant
Padded shoulder straps
Padded shoulder straps

Fit & style

  • Lightweight active use hydration pack
  • Includes 2L hydration reservoir
  • Dual-sided hydration ports
  • Main reservoir compartment
  • Quick-access stash pocket
  • Reflective safety accent
  • Sternum strap for added stability and comfort
  • Lifetime limited warranty

Specifications

Dimensions (Overall): 16.93 Inches (H) x 10.63 Inches (W) x 2.36 Inches (D)
Weight: .44 Pounds
Suggested Age: 12 Years and Up
Shell Material: Polyester
Bag Structure: Softside
Interior Features: Hydration Bladder Sleeve
Exterior Features: Airflow Back Panel, Zip Pocket, Reflective Tape, Sternum Strap, Padded Shoulder Straps
Main Compartment Closure: Zip Closure
Handle Type: Loop Handle
Number of Wheels: No Wheels
Water Tank Capacity: 2 Liter
Capacity (Volume): 5 Liter
Garment Details: Polyurethane Coating
Protective Qualities: Water-Resistant
Used For: Hiking, camping, Hunting, Climbing, Bicycling
Maximum Strap Length: 18.11 Inches
Fits Laptop: No Laptop Pocket
Battery: No Battery Used
Care & Cleaning: Hand Wash
Warranty: Lifetime Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869
TCIN: 78260575
UPC: 054003827256
Item Number (DPCI): 337-04-8232
Origin: Imported
WARNING: Cancer and Reproductive Harm www.P65warnings.ca.gov www.p65warnings.ca.gov

Description

Sometimes, you just need the basics. This Flagstaff Hydration Pack has your back with the included 2L hydration reservoir and a sleek, low-profile design that accommodates the essentials. External stash pockets store your quick-access items, with additional internal storage space in the main compartment. Want to pick up the pace? An integrated chest strap keeps the pack in place while you’re on the move and adds comfort.
Water-Resistant
Fabric resists water for comfort and long-lasting use
Padded shoulder straps
Padded shoulder straps
If the item details above aren’t accurate or complete, we want to know about it.

Shipping details

Estimated ship dimensions: 18.85 inches length x 13.57 inches width x 5.23 inches height
Estimated ship weight: 2.14 pounds

Return details

This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
4.1 out of 5 stars with 77 reviews
57% would recommend
19 recommendations

A daily driver

5 out of 5 stars
Would recommend
Purityofessence - 7 months ago
Have never owned one of these, had this one over a year now. This water backpack is awesome! I use it every day at work, it reminds me to drink and I don’t have to worry about losing it in the shop. It’s even more handy out in the wild. Pretty easy to clean. I recommend for daily use.
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Would be awesome IF it didnt leak!

1 out of 5 stars
Would not recommend
Sunshine - 10 months ago, Verified purchaser
Leaks within 30 days of purchase. Had higher expectations, unfortunately this didn’t last long.
2 guests found this review helpful. Did you?

Bad design

1 out of 5 stars
Would not recommend
Cc813 - 1 year ago, Verified purchaser
I’ve had other bags this size and brands have been more strategic with storage and places to put things. This bag literally has nothing.
2 guests found this review helpful. Did you?

Bag isnt 4L

3 out of 5 stars
Would not recommend
Marlena - 1 year ago, Verified purchaser
It’s not 4L like in description it’s only 2L
18 guests found this review helpful. Did you?

great item

5 out of 5 stars
File cab - 1 year ago, Verified purchaser
loved the purchase. thank you. pick up was quick and good as well.
4 guests found this review helpful. Did you?

Water spout broke within 2 hours of use.

1 out of 5 stars
ankipra - 1 year ago
It worked well for a little bit until the spout broke after 2 hours of usage. Really disappointing.
5 guests found this review helpful. Did you?

leaky bladder

3 out of 5 stars
Would not recommend
Dee - 2 years ago
bought it as a gift for my spouse on father's day. It was an online order and didn't notice that it missed an important part. It leaks all the water out due to that. otherwise, it works fine.
4 guests found this review helpful. Did you?

Leaky defective product.

1 out of 5 stars
Would not recommend
SS Shopper - 2 years ago
This Sierra hydration pack leaked immediately.
1 guest found this review helpful. Did you?

Plastic oder water

2 out of 5 stars
hiker pro - 2 years ago, Verified purchaser
I barely write any reviews. This bag looks decent. Water tastes like plastic, especially the first couple of sips when you hike or cycling under the sun.
2 guests found this review helpful. Did you?

Fantastic for the price!

4 out of 5 stars
Customer - 2 years ago
I've used this quite a bit over the last year and it has held up well. It says not to wash it in the washing machine, but I do, no issues yet. It works great for mountain biking and hiking. The little pockets are handy for phones, granola bars, keys, etc. The biggest down side is it doesn't work for running, it bounces way too much when running. Oddly enough I never notice it even on the roughest trails on my mountain bike. So if you are hiking or riding this is a great choice, especially considering the next best option is 3x the price or more. If you are running, I would look elsewhere. Another con that isn't a big deal, the bladder isn't super easy to clean or dry. Some more expensive bags have easy to clean and dry bladders.
2 guests found this review helpful. Did you?

Comfortable but Built Cheaply

4 out of 5 stars
Kelsey - 2 years ago, Verified purchaser
It is a nice back pack. It is definitely comfortable and easy to drink from while hiking. However, after using it only one time, the front bungee strap broke. I had only put chapstick and a car key in the front pocket so it was no where near full. Disappointed because it makes it difficult to use the front compartment now. The trip I bought it for is in four days so I will still be using it but I definitely wish the front pocket had lasted a little longer.
6 guests found this review helpful. Did you?

Will buy more!

5 out of 5 stars
Would recommend
Maria - 2 years ago, Verified purchaser
Lightweight and worked great!
1 guest found this review helpful. Did you?

Misleading

3 out of 5 stars
Summer - 2 years ago
I ordered this because it was advertised that it can hold 4liters of water but the bladder only holds 2liters. The sticker says flagstaff 4L. But it also says volume 5L. So they really need to relabel this as 2liters.
26 guests found this review helpful. Did you?

Misleading

1 out of 5 stars
Would not recommend
Buyer - 2 years ago, Verified purchaser
Misleading. It’s not 4L. It’s only 2L
1 reply from Exxel Outdoors team - 2 years ago
Hello and thank you for the note. The Sierra Designs Flagstaff Hydration pack is 4L and includes a 2L hydration reservoir. We apologize that was not clear when you purchased the pack.
14 guests found this review helpful. Did you?

Review

5 out of 5 stars
Would recommend
Water backpack - 2 years ago, Verified purchaser
Great for our little last minute adventures!!
1 guest found this review helpful. Did you?

Great for Target brand

4 out of 5 stars
Kay - 2 years ago, Verified purchaser
This is a great starter hydration pack. It holds enough water to maintain my walks and hikes, as well as a snack, keys, phone, and cash/card if necessary. The only thing I don't like is that the straw spout doesn't have a cover. Adding a covering to the spout would be a positive improvement and one I would have paid a little more to have as well.
4 guests found this review helpful. Did you?

Garbage

1 out of 5 stars
Lame - 2 years ago
It leaked first use. I’m returning it immediately.
1 reply from Exxel Outdoors team - 2 years ago
Thank you for the feedback. Sierra Designs has been making quality camping equipment since 1965 and it saddens us to hear this item did not perform. It sounds like you may have experienced a warranty issue. Please call our customer service department to tell us more about your experience 800.736.8592.
2 guests found this review helpful. Did you?

Amazing quality

5 out of 5 stars
hydrationenthusiast - 2 years ago
I bought this at the very beginning of lockdown because the water fountains in the park where I run were closed down. I wanted to wait a long time to review because this is SO much cheaper than a certain name brand and I was skeptical about the quality. Well, I would not have thought that we'd still be in a similar situation 11 months later in terms of a global health crisis, but y'all I can vouch that this hydration pack is AMAZING. The pack is super lightweight and can carry your phone, your cards/ID, keys, even a snack or two! But most importantly (for me) or it's been nearly a year that I have run with it 2-3 times a week, plus a few hikes a month: IT'S STILL IN PERFECT SHAPE, aside from some trail dust! There have been no leaks, no broke mouth piece, no busted zippers, no damage at all. I anticipate having this pack for much longer, but when the day comes I will 100% replace it with this brand again.
10 guests found this review helpful. Did you?

Can't beat the price

5 out of 5 stars
steve - 2 years ago, Verified purchaser
Purchased this a few months ago and have taken on several backpacks now. Very slim and convenient. One of the thing about the competition packs is that they are made to hold other things (8L and up), this is just for water, which is all I need. The top latching system seems a bit overkill, but no leaks or issues, so maybe it's perfect. I worry about the bottom connection since it is just a single barbed hose fitting, but only time will tell. I might end up putting in a hose clamp to ease my worries. Some of the fancier models have quick detach hoses for cleaning, i do miss that feature, but can't beat that price. Also does not come with any cleaning devices as some others do.
4 guests found this review helpful. Did you?

Great backpack for bike riding

5 out of 5 stars
Would recommend
Mar_93 - 2 years ago, Verified purchaser
Great size to add a wallet and a phone as well. It’s not just for water that again is kept very cold throughout a long bike ride.
1 guest found this review helpful. Did you?

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