Endurance Pack 4L - V2.0 (2L bladder, 4L cargo): Ideal for running and biking

Rated 4.9 out of 5
84 Reviews
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  • Regular price $185.88


A highly breathable and durable mesh yields maximum heat release in a tough package. The pack is stretchy, but has a balance of maintaining form while allowing plenty of movement. This pack is excellent for carrying your fluids while running and riding. The front harness is stretchy so you can breathe during movement.
  • Mountain Bike: Extremely stable on your body across the choppy stuff, and we extended the shoulder area a bit to allow freedom of movement. 4 front pockets allow for quick access of your essentials on the fly.
  • Running: Short runs or as long as you want to go. This hydration pack is loaded with features to take you any distance. 
  • Hiking: The conforming fit and quick access pockets paired with a very breathable frame means hiking bliss.  

Endurance Pack 4L, Version 2.0 Animation from Orange Mud on Vimeo.

Fit: This pack is designed to be friendly with your curves. Just slide the sliders up and down to find the optimal fit and adjust the sides snug. Max chest size is around a 52” chest. If you need bigger let us know and we will add more to them!
Optional Accessories

Pack Details

  • Pack Weight: - 11.4oz
  • Dimensions: 10"W x 13" tall / Volume 6 liters.
  • Bladder: HydraPak 2L (70oz) elite, with quick disconnect and blaster valve. 
  • Compartment 1: Bladder compartment
  • Compartment 2: Main cargo
  • Compartment 3: Zippered elastic pocket with secure key clip.
  • MUDX Technology: Trekking Pole Attachment Option. 
  • Material details: Our stretch fabric is tough, abrasion resistant, & endurance designed. 
  • Shoulder pocket storage: Phone, gel, nutrition, electrolyte and more, both sides.
  • Front chest pocket storage: 20oz/600ml soft flask capable and trash pockets.
  • Front adjustments: 2 elastic straps on sliders for an optimum fit.
  • Made in Vietnam

Trail Runners Dog review below.

Endurance Pack V2.0 Review


average rating 4.9 out of 5
Based on 84 reviews
  • 5 Stars
    78 Reviews
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99% of reviewers would recommend this product to a friend
84 Reviews
Rated 5 out of 5
Review posted

100 Mile - No problem

I purchased this Endurance Pack for my first 100 mile run which was the Hennepin 100. The pack worked great, I was able to store all the items I needed to help me accomplish this event, as there are plenty of storage compartments to keep what you need. I was able to keep the fluid to a minimum and top up at the aid stations along the way. The pack is light weight, and you really do not know you have it on especially the later stages of the run where you are getting tired.

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Rated 5 out of 5
Review posted

I'm in love

Ok so about 7 years ago I got the hydraquiver single barrel and thought it was Amazing!!! I loved having my hands free while running and being able to carry my keys and snacks while I ran. Just recently as my running has picked since having 2 kids I decided to invest in the Endurance Pack (2L bladder) and I have fallen in love all over again. I love all the storage but the best part is how much water I can carry and not feel it bounce around. So far I have used my pack on trail and on road running and I am in love with its comfort and multiple storage pockets. Love Love Love it!!!!!

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Rated 2 out of 5
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Rated 5 out of 5
Review posted

Great Pack

The first time I used this pack was last year during the SD100 when I helped sweep the course. I borrowed it from a friend. It was very comfortable and I was impressed with the design. So We purchased our first Endurance Pack 4L - V2.0 for my wife who was training for her first 50k. I also used it on my longer trail runs. She loves this pack in white. How it fits, easy access to pockets and the ability to carry everything she needs on long days run.

She is now training for her 2nd 50k and I am starting to train for the San Diego Ultra slam next year so I purchased another one of these packs. We are very happy with them. I coach many Ultra runners and have also recommended this product.

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Rated 5 out of 5
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Rated 5 out of 5
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Rated 5 out of 5
Review posted

excellent hydration pack

I love how my Orange Mud pack fits my body and stays in place during my runs, no chafing. The gel pockets are super convenient, and the large front pockets fit my big iPhone. The pocket in the back is perfect for things like keys, energy bars, and light weight jacket. The bladder holds more than enough water for long, hot runs and does not have a horrible plastic taste.

Four of my friends have this pouch on my recommendation.

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Rated 5 out of 5
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Rated 5 out of 5
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Incredibly comfortable

I love this pack. On long runs, even the smallest thing can cause pain eventually but not this pack. It's super comfortable right from the get-go and all the way to the end. I ended up leaving the drinking tube at stock length - that just suited me better.

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Rated 2 out of 5
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Rated 5 out of 5
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Rated 5 out of 5
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