Stability, breathability, and quick access pockets on the Endurance Pack make it perfect for any endurance event. It features a highly breathable and durable mesh that transfers heat quickly away from your body, yet is still soft on your skin. We balance the use of stretchy materials where needed, but use firm materials where we need to maintain stability of fluids and gear. This pack is excellent for carrying your fluids, plus sized phone, electrolytes, and essentials while running and riding!

Note there are two versions, with the "Trekking Pole Upgrade" and the standard. The Trekking Pole Upgrade version has the hardware to "hold" trekking poles, but poles are not included with this purchase. 

The key to fit, cinch the sides first, not the front, until you feel the pack anchor on your shoulders. Then adjust the front harness as needed 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 142 reviews
  • 5 Stars
    133 Reviews
  • 4 Stars
    8 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
99% of reviewers would recommend this product to a friend
Times Used
Rated 3 out of 5
Quality
Rated 4 out of 5
Function
Rated 4 out of 5
Customer photos and videos
142 Reviews
Reviewed by Kristina M., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • No Chaffing
  • Easy Access
  • Easy to Wash
  • Very Comfortable
I use it for
  • Trail Running
  • Road Running
  • Marathon
Rated 4 out of 5
Review posted

Definite improvement from my old pack!

I bought this because the water bladder in my old pack developed several small micro-tears when I tried to clean it and ended up leaking in the bottom and ruining the pack. So I decided to invest in one of these based on recommendations from fellow runners. I have to say, overall, this was a worthwhile investment. The pack feels very light on my body, the bladder seems pretty durable and easy to fill and clean, and the adjustable straps ensure that it's never too tight or awkward on my body. Couple of drawbacks: 1) Please consider an insulated drinking tube for future packs. I've run in several temperature extremes, and insulated tubing helps prevent water from warming up too quickly in the tube in the hot summers and freezing over in the rough winters. 2) I've found the drinking nozzle from the tube still leaks water while I'm running even when I close it all the way. It's not a huge deal because the leaking is very minor, but if there was some way to keep that from happening (like a cap or something), that'd be great. These drawbacks aside, overall, I think this a really worthwhile purchase for distance runners. And I hope I'll be able to keep using it in training runs and half-marathon races for many good years to come.

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Times Used
Rated 3 out of 5
Quality
Rated 5 out of 5
Function
Rated 4 out of 5
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Reviewed by Debra E., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
  • Very Comfortable
  • No Bounce
  • Compact
I use it for
  • Trail Running
  • Road Running
Rated 5 out of 5
Review posted

Hydration pack

My daughter borrowed this one from a friend so I decided to buy one for her and myself. It is amazingly proficient during runs hikes and bicycling. They were very accommodating when placing my order and was able to send these two items two separate addresses. I will definitely buy from orange mud again.😎

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Times Used
Rated 5 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Jarrod M., from United States
Verified Buyer
I recommend this product
Product Standouts
  • No Chaffing
  • High Quality
  • Compact
  • Very Comfortable
  • Easy Access
I use it for
  • Trail Running
  • Road Running
Rated 5 out of 5
Review posted

Summer Freedom

With Covid hitting in March, all the water fountains on my running paths are currently closed. The hydration pack gives me the freedom to go for 2 to 3 hours and still have water available on these hot days on the run or hike while also safely stowing my keys, phone, gu, and anything else I can think of. Amazing shipping speed as well.

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Times Used
Rated 2 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by kenneth K., from United States
Verified Buyer
I recommend this product
Product Standouts
  • No Bounce
  • Very Comfortable
  • High Quality
  • Compact
I use it for
  • Mountain Biking
Rated 5 out of 5
Review posted

Great Pack and great capacity for H20

I went to orange mud because of the capability to have a vest style pack but hold 2L of water, I was surprised when it was actually smaller than a competitors 1.5L vest. Not a lot of room for other storage but this is mainly for holding water and not packing up so I did not mind that. It is also very comfortable, when filled to the max with water you will feel a small bulge in your back but after a few sips that goes away and you barely know that you have the pack on. I have used this for 24 hour mtb/bikepacking rides and never had a regret that I was wearing it!

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Times Used
Rated 2 out of 5
Quality
Rated 5 out of 5
Function
Rated 4 out of 5
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Reviewed by Jeff E., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Very Comfortable
  • No Bounce
  • Compact
  • No Chaffing
  • Easy Access
I use it for
  • Trail Running
  • Triathlon
  • Road Running
Rated 5 out of 5
Review posted

Great Pack!

Was in the market for a hydration vest due to training for an Ironman Triathlon. Several on my tri team recommended I check out Orange Mud and I am so glad I did. I have used the vest about a half a dozen times already and love it. I wanted a hydration pack that not only held enough hydration and nutrition, but could also carry my phone and not bounce. This pack is all that and more than I could hope for. I bought the Endurance Pack V2.0 and can now carry enough water for a 2 - 3 hour ride plus nutrition. I barely sense the weight, mostly because it fits perfect and doesn’t bounce. With all the pockets, my phone and all my nutrition is easily accessed. This has literally transformed my long runs and I only wished I would have made this investment sooner.

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Times Used
Rated 2 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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