Sale: $ MSRP: $


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Looking to spend some serious time exploring the backwoods trails? The Nathan Endurance race vest carries 2L (70 oz) hydration with utmost comfort via the 3-Way Propulsion Harness that allows this vest to move naturally with your body. Pack all the extra apparel and gear you need with 2 rear pockets and an external shock cord; a front pocket can accommodate an extra 22 oz bottle and several smaller pouches stash nutrition.


  • Nathan Grey (5027NG)

Vest Details

  • Includes 2 liter (70 oz) Hydration Bladder with unique Slideseal™ top closure
  • Provides liquid for about 3+ 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: 15.3 oz (435g) with empty bladder


  • 80% Nylon / 20% Polyester

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


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Customer Reviews

Comments: I ran in this vest for the first time yesterday. It is much lighter than my old vest and I really like the fit- easy to adjust and I like the pockets. Feels great. I read some previous reviews about the bite valve having low flow, I did not find this to be a problem. Although, the bite valve tastes like poison, could be from the shrink wrap package or maybe it is just the valve. The taste started to go away half way through the first bladder. I suggest rinsing it thoroughly before using.
From: Tim, Salem, OR