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 173 reviews
  • 5 Stars
    160 Reviews
  • 4 Stars
    12 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
173 Reviews
Reviewed by Mark S., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Very Comfortable
  • No Bounce
  • Easy Access
  • Easy to Wash
I use it for
  • Trail Running
  • Ultrarunning
Rated 5 out of 5
Review posted

Perfect for 2- to 5-Hr Trail Runs!

I've been really happy with my Endurance Pack V2 for trail running in NH and VT. Suitable for runs lasting from 2 to 5 hours. Plenty of storage space, pockets, etc. for hydration, nutrition, emergency gear, clothing. Comfortable, adjustable fit. The elastic chest straps tend to slip a bit - easily reinforced with bungee-type shoelaces for a more snug fit across the chest. Would love to see a magnetic hydration bladder hose clip attachment near bottom chest strap to secure the hose. Material is expandable and sturdy - takes a beating on the trail. Thanks Orange Mud - Happy Trails!

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

Excellent product!

After a 12 mi run, I am very happy with my hydration pack. The pack stayed in place with no bouncing. It was quite comfortable to run with after getting the fit fine tuned.

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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 Jana Upton C., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • No Bounce
  • High Quality
  • Very Comfortable
  • No Chaffing
I use it for
  • Trail Running
  • Ultrarunning
  • Marathon
  • Road Running
Rated 5 out of 5
Review posted

Running vest

This is by far the most comfortable running vest I have owned. I have chronic neck issues and any offset weight can make long activities unbearable. I find the ergonomic construction of this vest superb, even filled with fluid and trail goodies. Balanced and comfortable throughout the miles. Durable and easy to care for, too.

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

Love it, zero bounce

I've used it on a full and a half marathon, and could not be happier. It rides high on the back so I don't get the chaffing in the middle back that I have experienced with other packs once I start sweating. The side cinch straps are helpful to keep it secure as you start consuming fluids and nutrition. Won't use another pack again!

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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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Orange Mud, LLC

Thanks Scott!

Reviewed by Ryan 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
  • Road Running
Rated 5 out of 5
Review posted

Endurance pack 2.0

I ordered my endurance pack 2.0. I needed a water pack that would allow me to go on longer runs without running with multiple water bottles. This pack has worked great so far. Had it for about 2 weeks and it is light and compact. Makes it feel like your running with no additional weight. Also when I ordered my pack I assumed it would take several weeks to get delivered to me. This was not the case Orange mud had this pack delivered to me with 3 or 4 days. Turn around time was awesome! Definitely recommend this company and running 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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