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 148 reviews
  • 5 Stars
    139 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
148 Reviews
Reviewed by Paul H., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Very Comfortable
  • Easy Access
  • Compact
I use it for
  • Marathon
  • Ultrarunning
  • Road Running
Rated 5 out of 5
Review posted

Excellent Vest

I just ran with my brand new Endurance Pack V2.0: for the first time. 11 miles in warm very humid weather went well! The vest is comfortable, doesn’t overheat and the drinking system was the best I have ever used. I look forward to running with this new gear for much longer runs (in better weather, hopefully) in the near future.

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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 Kevin B., from United States
Verified Buyer
I recommend this product
Product Standouts
  • No Bounce
  • No Chaffing
I use it for
  • Road Running
  • Mountain Biking
Rated 5 out of 5
Review posted

Exactly what I was looking for

No sloshing. Stays put. Quality construction. Needs some Velcro or something to hold straps after tightening.

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

Diggin' It

I'm a small frame girl and needed a pack for longer hikes that wouldn't weigh me down or be too bulky. Love the oversized pockets up front for water and my phone. Easy access pockets on the shoulders are perfect for quick snacks and other items you want handy. Only downside for me is the bladder slide closure hits me between my shoulder blades. I bought a different bladder that should remedy that issue. Looking forward to this being my go to pack.

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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 Go F., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • No Bounce
  • Very Comfortable
  • Compact
  • No Chaffing
I use it for
  • Trail Running
  • Road Running
Rated 5 out of 5
Review posted

Great Product

After searching endlessly I have FINALLY found a hydration pack suited for my build. Took it on its first run and to be honest and I mean honest I couldn't tell I was wearing it.

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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 James C., from United States
Verified Buyer
I recommend this product
Product Standouts
  • No Bounce
  • Very Comfortable
  • No Chaffing
  • Easy Access
I use it for
  • Road Running
  • Trail Running
Rated 5 out of 5
Review posted

Fits perfect

The fit was perfect, adjusted sides before front as recommended. Used on a 10 mile run in the heat and humidity. May throw some ice cubes in next time to keep water a little cooler when it is so hot out.

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Times Used
Rated 1 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
Was this helpful?