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 223 reviews
  • 5 Stars
    205 Reviews
  • 4 Stars
    17 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
223 Reviews
Reviewed by Amber S., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • Very Comfortable
  • Compact
  • Easy Access
I use it for
  • Mountain Biking
Rated 5 out of 5
Review posted

Great for mountain biking!

I bought this because I had a mountain bike race and didn’t want to have to worry about teaching for my bottle. It was light compact and easy to use.

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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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Orange Mud, LLC

Awesome! Glad you dig it!

Reviewed by Joe B., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Very Comfortable
  • Easy Access
I use it for
  • Road Running
  • Mountain Biking
  • Marathon
  • Trail Running
Rated 5 out of 5
Review posted

Great Pack. Used for Cycling and Long Runs

Great Pack. 2L of hydration helps in hot Charleston SC during the summer months for long runs and cycling. My only wish on this item was that it was made of reflective material. Have to put reflective gear over it for running in low light conditions. Well Made product. I am a large guy 50" chest. perfect for the big guy.

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Rated 5 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Matthew M., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Very Comfortable
  • No Bounce
  • No Chaffing
  • High Quality
I use it for
  • Trail Running
  • Marathon
Rated 4 out of 5
Review posted

comfortable and accessible

I put this on for 20+ run the first time and ended up wearing the entire run (despite car pit stop in middle). No rubbing/chafing. I found the drink line tucked nicely under cross-chest strap with no bouncing, etc. The shoulder pockets are convenient for gels (gummies on one side, gels on other). The tie down on the back will be useful for jacket, but no apparent place to hold it down with nothing under it, so it wants to bounce around and clip your shoulder and head. Not too hard to remedy on your own. Also wish one of the front pockets had a tighter hold for a phone--cinch down pretty tight on the opening to hold a phone (or put it in the back).

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Times Used
Rated 1 out of 5
Quality
Rated 5 out of 5
Function
Rated 4 out of 5
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Reviewed by Scott B., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Very Comfortable
  • No Bounce
I use it for
  • Trail Running
  • Mountain Biking
Rated 5 out of 5
Review posted

A pack that doesn't bounce

I wanted a pack for the essentials for mountain biking that wouldn't bounce while riding. The pack does a great job of staying in place high on the back and is very comfortable. I don't hardly notice it while I'm riding.

I would have liked some way to close top of middle pocket.

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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 Tip P., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Very Comfortable
  • Compact
  • Easy Access
I use it for
  • Mountain Biking
Rated 4 out of 5
Review posted

Minimalist Pack with Storage and plenty of water for 15 mile rides.

I bought this pack for MTB Rides under 15 miles and 20 mile gravel rides. I currently own a 100oz pack with a lot of storage, which is a bit much for my local, weekday, trail rides.

Hydration:

The bladder holds 70oz of water, which is a lot of water for its diminutive size. Perfect for under 15 miles. The bite valve works incredibly well, and. I had no issues with leaks whatsoever after drinking from the bite valve. Water flow is perfect when needing a sip/drink. Filling the bladder is a bit tedious removing it from the pack then opening with the slide enclosure. Once filled and installed back in to the pack all works well. The water tube gently lays over your shoulder and bounces around a bit while riding. I noticed that if you cram the end of the water tube in to the front strap pocket it keeps the tube in place. I think I will install some Velcro to the tube and the top shoulder strap to hold the tube in place when hammering down trails. Probably not a big deal if you are a runner as opposed to using this pack for MTB. If you like cold water during your ride/run, be sure to add a lot of ice on warm days. Being a minimalist pack, it is lacking insulation. My first ride I was drinking warm water one hour in to my ride in 75 degree sunny temps. My second ride I loaded up on ice on a 52 degree windy day, and my back was freezing. More ice on warm sunny days could provide a cooling benefit. No ice on a cooler day could be perfect. I will be experimenting based on the temps, but…

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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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