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 235 reviews
  • 5 Stars
    214 Reviews
  • 4 Stars
    20 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
235 Reviews
Reviewed by Ashley S., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Very Comfortable
  • No Bounce
I use it for
  • Trail Running
  • Road Running
Rated 5 out of 5
Review posted

Great fit

This is the first running pack I’ve ever owned. I am blessed with a bigger frame on the top and always had a hard time finding a pack that fit. This pack is awesome! Just one recommendation is some kinda of velcro or device that allows you to tie up the excess straps.

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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 Samantha O., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Very Comfortable
  • No Bounce
  • Easy Access
I use it for
  • Trail Running
  • Marathon
  • Road Running
  • Ultrarunning
Rated 5 out of 5
Review posted

Love this pack

I've tried many packs now and couldn't quite get the right fit. Tried this one and absolutely love it. No bounce, easy to adjust, good storage, and cool color. Can't wait to use for all my long runs.

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Times Used
Rated 1 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Joe B., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Compact
I use it for
  • Trail Running
  • Marathon
  • Mountain Biking
  • Road Running
Rated 4 out of 5
Review posted

Great Pack. Used for Cycling and Long Runs

Great quality. I am a large framed male. I have used this pack for a little over a year for half marathons, trail runs and long cycling rides. Holds cell phone keys etc securely. Durable material. Had to replace the mouth piece only because I lost it after cleaning. The only thing that I would have changed about the design would be to add reflective material to the back and front. My runs and cycling are usually at Oh dark thirty. I put some aftermarket reflective material on it but it would have been nice to incorporate it into the design.

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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 Dannie L., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Very Comfortable
  • No Chaffing
  • Compact
  • No Bounce
I use it for
  • Marathon
Rated 4 out of 5
Review posted

Endurance Pack V2.0

So far it's been a good purchase. With only one long run with the bladder being full and only a hand full of short runs to get it adjusted. I am pleased with it.

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Times Used
Rated 4 out of 5
Quality
Rated 4 out of 5
Function
Rated 4 out of 5
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Reviewed by Anna F., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Very Comfortable
  • No Bounce
  • Compact
  • No Chaffing
Rated 5 out of 5
Review posted

Great fit.

This is my first hydration pack so I wasn’t sure how it would fit. I’m happy to say it is so comfortable! I love the extra pockets, too. Great product.

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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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