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Quick Start 2.0 4L Pack

4.16 out of 5 stars
25 Reviews
Color:Periwinkle/Estate Blue


Size Chart


Why We Like The Quick Start 2.0 4L Pack

Whether we are running on city roads or trails in the foothills we put on the Nathan Quick Start 2.0 4L Pack. This hydration pack keeps 1.5L of water, our phone, and our go-to mid-run snack all within arm's reach while allowing us to move comfortably.


  • Functional running vest built for runs of any distance
  • Nylon and synthetic blend is durable and drys quickly
  • Mesh straps wick moisture while we work up a sweat
  • Hydration compatibility keeps us fueled up on runs
  • Front pockets hold smartphones and gels within arm's reach
  • Side cinch straps prevent this pack from bouncing
  • Item #NATG03D
60% nylon, 40% polyester
4L (244cu in)
Hydration Compatible
Reservoir Included
1.5L bladder
mesh chest, zippered chest, back hydration
side cinch straps
Claimed Weight
[with bladder] 9.5oz, [without bladder] 5.5oz
running, hiking
Manufacturer Warranty

Overall Rating

4 based on 25 ratings

Review Summary

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

What do you think about this product?


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4 out of 5 stars

February 12, 2024

Comfortable and fine.

It's really comfortable to wear. I wear it on 15+ mile runs and like the phone pocket, pouch for gels, and other things. I rides well, no rubbing or chaffing. I do find it hard to drink from. I have to suck really hard, so it makes it difficult to catch my breath and drink. Also, when I first used it, it leaked everywhere and I lost most of my water. Then I checked and the connection of the hose to the bladder wasn't inserted correctly. I tightened it and it's worked fine ever since.

Bryce W

Originally reviewed on

5 out of 5 stars

December 24, 2023

Great hydro pack w/ pockets for my food & phone

[This review was collected as part of a promotion.] Perfect pack for trail running. The bladder works great for long runs and I love all the pockets. It’s easy to store my food and phone.

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Blonde Runner

Originally reviewed on

3 out of 5 stars

December 3, 2023

Noisy water bladder

The vest itself is great. I was worried being a smaller woman that the unisex design would not work. It fits great. The big problem with this is that the water bladder that comes with it is terrible. The sound of the water sloshing around was so very loud. I had to turn up my headphones to hear my music over the noise from the water bladder. Being a vest designed for runners, I am shocked that Nathan (the pros in hydration vests for runners) would give this bladder as part of the purchase. Even walking it was loud and annoying. Give the option to upgrade to be better bladder in the item description.


Originally reviewed on

5 out of 5 stars

November 19, 2023

Great fit, works well when dialed in

I read other reviews here before buying this, so I was curious about the issues some people had with the bladder. I did have to tighten down the tube where it attaches to the bladder, but I’ve since put 100 on it with no issues (thankfully with the temps being around freezing!) Filling the reservoir worked fine, and I feel the tube length is just right. The bite valve is intuitive, and the lock feature works great. This pack fits snug against the body with zero bounce. Very happy with it for all of the reasons!

Greg O

Originally reviewed on

5 out of 5 stars

November 9, 2023

Comfortable and great features

Love this hydration pack. It is very comfortable and has plenty of pockets for essentials.


Originally reviewed on

5 out of 5 stars

September 8, 2023

Great fit on a SUP

It’s was perfect for me during Chattajack SUP race, the pockets filled with snack kept me on the move. Easy change out at mile 20. Never was in my way or limiting my mobility.


Originally reviewed on

1 out of 5 stars

August 19, 2023

Leaks nonstop

Leaks nonstop where the hose meets the bladder. Tested it by hanging it upright and sealed overnight and the entire bladder had leaked onto my garage floor overnight. Don’t buy this until they fix this issue!


Originally reviewed on

3 out of 5 stars

August 13, 2023

Good Pack, Ok Quality

Not super impressed with the quality. I have used it 4 times and the stitching for one of the elastic loops to hold the extra strap slack is unraveling. There is also a piece of thick piping sticking out from the edging. Luckily it hasn’t caused any running issues, but for the price I’m not thrilled with the construction.

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Kristen O’Connor

Originally reviewed on

5 out of 5 stars

August 4, 2023

Long Run Hydration Pack to the rescue!

First time buying a hydration pack and absolutely love it!


Originally reviewed on

5 out of 5 stars

July 24, 2023

Game changer!

For those that don't want to read the "why," the "what" is I love my hydration pack and highly recommend it! If you're still reading, the "why" is that I foolishly signed up for a half marathon in September which means training started in June, and I live in Florida! A friend in my run club swears by her Nathan's pack and I needed something that would hold my tissues (I have EIR - very runny nose), my gummies, water (I hate holding things in my hands), key, ID, etc. The pack fits like a glove and does not move during my long runs so no rubbing or chafing and I love the quick access in the front pockets to get to my tissues and gummies. I am also able to reach the back zippered pocket with the pack on, to retrieve my ID, key or drop a snack in. So happy with it! It's truly been a game changer for me!

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Originally reviewed on