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  • Nathan VaporKrar 4L Hydration Vest
  • Nathan VaporKrar 4L Hydration Vest 3/4 Back
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NathanVaporKrar 4L Hydration Vest
Sale 45% Off$82.47 - $89.97

Item # NAT003C

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  • Steel Grey, XS ($82.47)
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Item # NAT003C

Don't run parched.

You're loathe to carry hydration with you on a run, but when you're running a summer ultra, even you can admit that your stubborn minimalism needs to take a trip to the back burner. For seriously long runs from humid Northeast forests to scorched desert dirt, put on the Nathan VaporKrar to make sure you stay safely hydrated through your most challenging days.

Depending on the length of the run you're prepping for, you can choose to fill the included 12 oz soft flasks with water, as well as add your own 1.5-liter hydration bladder for extra reassurance. The design focuses heavily on maintaining a breathable, shirt-like fit that won't slosh and bounce for hours on end, so don't feel like you need to skimp on water to preserve your sanity. The soft flasks also come with extended straw tubes so you can sip without removing them from their pockets Though you'll have friends waiting with more exciting junk food at aid stations in your race, having a store of easy-to-access energy gels is crucial when you're training, and the VaporKrar's wealth of pockets give you plenty of room to stash as much as you need.

  • Train for your next ultra with this minimal hydration vest
  • Includes 2 12oz soft flasks with straws for hands-free sipping
  • Back panel accommodates separately sold 1.5 L bladder
  • Stretchy, breathable fabric cut to stay close to the body
  • Adjustable sternum straps provide a customizable fit
  • Multiple stash pockets fit up to an iPhone 6 as well as fuel
  • Reflective accents help you stay visible on evening runs
Tech SpecsSize
Tech Specs
4L (244cu in)
adjustable sternum straps
Hydration Compatible
1.5L bladder (not included)
Reservoir Included
two 12oz ExoShot soft flasks
front, back
multiple stash
Recommended Use
Manufacturer Warranty


Hydration Vests
 XSS / ML / XL

30 - 32in

(76 - 81cm)

33 - 38in

(84 - 97cm)

39 - 44in

(99 - 112cm)


25 - 30in

(63 - 77cm)

28 - 33in

(71 - 84cm)

31 - 36in

(79 - 91cm)

34 - 40in

(86 - 102cm)

How to Measure:
Measure 3" below underarms at the widest part of your chest, keeping the tape a bit loose.

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Handheld Bottles Steal the Show!

  • Familiarity: I've used it several times

First impression with the vest was good. Light, stretchy, good fit, overall impressed. I have run with previous Nathan vests as well as an S-Lab for the last few years while doing development for Ragnar Relay Series races and always loved the vest and handheld combo much more than the bladder. Never really liked that sloshing feeling on the back. So when I got this vest I was pumped with the design. Then I saw the handhelds and mind was blown! I think we can all agree trying to put a soft flask back into a vest when it is half empty is not fun. So to my surprise when I saw I could actually take a drink from this soft flask without ever having to take it out of the vest? Heaven! Love it!

And for those that do want the bladder it can hold one, has a magnetic clip for the front of the chest strap to keep it close and in an easy reach.

Seriously changer! Get you one now before they sell out.