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 229 reviews
  • 5 Stars
    210 Reviews
  • 4 Stars
    18 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% 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
229 Reviews
Reviewed by Derrick G., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Very Comfortable
  • No Bounce
  • Compact
I use it for
  • Trail Running
  • Ultrarunning
  • Marathon
  • Road Running
Rated 5 out of 5
Review posted

Awesome pack!

Love the endurance pack 2.0, fits secure with no bouncing!

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

Ready to Ride

I have to say I love this pack. If I have a short or long ride, it’s there with me. I also have the soft bottles for the front pockets. Now when I’m riding I don’t have to stop for a drink. I can just keep on rolling as I drink. The fit is great. I chose the green because it also provides more visibility.

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Times Used
Rated 3 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Charlie, from United States
Verified Reviewer
I recommend this product
Product Standouts
  • Easy to Wash
  • Compact
I use it for
  • Trail Running
Rated 4 out of 5
Review posted

Overall, very satisfied.

My biggest gripe is the bite valve. It is way too complicated - gotta twist and turn it to open and close it. Soon after using the pack, the valve began leaking. It didn't leak enough to cause an appreciable loss of fluid, but it did leak enough to be annoying. I replaced the valve with a simple bite valve off of a camelback.

Great storage on the pack, though. Plenty of different size pockets up front to hold nutrition, phone, other water bottles.

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Times Used
Rated 5 out of 5
Quality
Rated 4 out of 5
Function
Rated 5 out of 5
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Reviewed by zac M., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
  • No Bounce
  • Very Comfortable
  • Easy Access
I use it for
  • Mountain Biking
Rated 5 out of 5
Review posted

Love it

Never rode with a hydration pack before until last week. My first ride with it was 114 mile race and the following weekend I did a 170 mile training ride. Super comfortable, love all the pockets, very sturdy and never once moved or shifted around. Absolutely love it!

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Rated 2 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Omar O., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Very Comfortable
  • Easy Access
  • Compact
  • No Bounce
I use it for
  • Road Running
  • Marathon
  • Triathlon
Rated 5 out of 5
Review posted

Extremely comfortable

Very impressed with the fit. I love all the pockets up front. I've done 3 runs so far with it and it's extremely comfortable. 10/10

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Times Used
Rated 4 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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