Price: $ MSRP: $


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Looking to spend some serious time exploring the backwoods trails? The Nathan Endurance race vest carries 2 liters of hydration with utmost comfort via the 3-Way Propulsion Harness that allows this vest to move naturally with your body. Turn that extra corner knowing you have extra pockets for a 22 oz bottle, nutrition, and a shock cord to carry apparel.


  • Grey/Yellow

Vest Details

  • Includes 2 liter (70 oz) Hydration Bladder with unique Slideseal™ top closure
  • Provides liquid for about 2+ hours of exercise, depending upon individual hydration needs
  • 3-Way Propulsion Harness™ moves with your shoulders and upper torso: each shoulder strap moves independently, preventing pack from swaying or riding up, provides freedom of movement
  • Fully adjustable, including vertical sliding sternum strap and side straps
  • Wall Mesh construction is lightweight and breathable, with soft perimeter binding
  • Contoured, padded back panel for comfortable, snug fit
  • Dual zipper and velcro flap offer quick access to bladder for re-filling
  • Front power stretch pocket can hold 22 oz bottle
  • Waterproof pill pocket stores electrolyte caps
  • 2 small front stretch mesh pockets: fit gel packets
  • Zippered front pocket stores small accessories
  • Small rear zipper compartment for stashing essentials, includes key hanger
  • Rear shock cord and one-pull tension lock carries jacket or other apparel
  • Tube clip at chest closure and reflective tube guides for increased visibility
  • Weight: 15.2 oz with empty bladder

Bladder Details

  • Replaceable 2 liter Hydration Bladder
  • Unique Slideseal™ allows for easy filling, cleaning and drying
  • Durable Thermoplastic Polyurethane (TPU) construction
  • BPA and PVC free, will not taint water taste
  • Anti-Microbial additive helps keep bladder clean
  • Dishwasher safe bladder
  • Omnidirectional high flow bite valve
  • Durable, kink resistant drink tube
  • Fill scale helps you monitor fluid volume
  • Tube can be cut to desired length, simply remove the bite valve and cut with sharp scissors


  • 80% Nylon/20% Polyester

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Customer Reviews

Comments: I just received mine and ran six miles with it to test it out. It is excellent. I totally forgot I even had it on. Fits perfect and doesn't bounce around. Nice to have to store wallet, keys, and cell phone while running. Very happy with this product!!!
From: David, Little Rock, AR

Comments: I love the design of the pack, when adjusted properly. Unfortunately, the pack came with absolutely ZERO information on the process of fitting it.  First run Icame back with road rash on my lower back. I would recommend wearing the chest strap low and tightening the lower side straps first with the bladder empty to a "snug" fit, then do the middle straps.  Fitting "like a hug," like the only foldup piece says is not tight enough to prevent bladder bounce. I'm very happy with this pack, but at the inflated price I'm quite annoyed that the bladder didn't come with the plug-n-play system - and the instructions were non-existent.
From: Kevin, Arizona

Comments: This pack is phenomenal. Took it on my recent ultra and it was great. I had it for a week, took it on one run prior just to get the straps positioned just right and wore it during the ultra just a few days later. The one complaint I would have is that I am a bigger guy (6'2" 210 lbs) and it seems to ride higher than I would like. Overall though great pack.
From: Brad, Iowa, USA

Comments: This pack is the bomb!!  Secure, doesn't move around, and has very useful pockets!  The slide open/closure on the bladder is only slightly annoying when trying to fill, but i can deal with that.  i love this pack!
From: Heather, Lakewood, CO, USA