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Ultimate Direction Jurek FKT 12L Hydration Vest
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Item # ULD001P

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Item # ULD001P


Designed by the legend himself.

You don't have to be training for Western States or Hardrock to need a hydration vest like Ultimate Direction's Jurek FKT Hydration Vest; anyone logging miles on hot, exposed trails could use one. Boulder-based Ultimate Direction has been making packs for runners since the mid-80's, and the brand regularly asks for the opinions from the big names in running to make sure their packs are up to snuff. The Jurek FKT was no exception. Designed by, and sharing a name with, one of the most prolific ultramarathoners ever, this hydration vest comes with an impressive pedigree.

Descended directly from Ultimate Direction's SJ Ultra Vest 2.0, the Jurek delivers a host of practical features runners will recognize and appreciate out on the trails. The vest includes lightweight FlexForm water bottles, as well as space for a hydration reservoir and the option to route the hydration hose any way you'd like. Bungee cords atop the main compartment streamline its contents when you're carrying a phone, map, water, and food, and dedicated holders for trekking poles are easily accessible up front. Ultimate Direction and Jurek construct the whole thing out of durable synthetic fabrics prepared to handle scuffs, scraps, and a whole lot of sweat.

  • Train hydrated in this pro-designed running vest
  • Main compartment provides space for water reservoir
  • Vest includes two water bottles and holders
  • Bungee cords streamline the contents of main compartment
  • Trekking pole holders are easy to access

Tech Specs

MonoRip mesh, 60D Silnylon
12L (708cu in)
Hydration Compatible:
Reservoir Included:
yes, 2 FlexForm bottles
front panel
2 water bottle, 4 stash, 1 zippered chest, 2 zippered hip
Trekking Pole Carry:
Claimed Weight:
11.2 oz
Recommended Use:
Manufacturer Warranty:

Size Chart

Ultimate Direction

Packs & Vests
SJ Ultra Vest 2.0
Chest Circumference

23 - 33in

(58 - 84cm)

31 - 36in

(79 - 99cm)

36 - 44in

(91 - 112cm)

AK Race Vest 2.0, PB Adventure Vest 2.0
 S / MM / L
Chest Circumference

23 - 36in

(58 - 91cm)

32 - 44in

(81 - 112cm)

Ultra Vesta
 XS / SM / L
Chest Circumference

20 - 38in

(51 - 79cm)

24 - 40in

(61 - 102cm)

Fastpack 20, Fastpack 30, Skimo 8
 S / MM / L
Chest Circumference

24 - 40in

(58 - 91cm)

32 - 46in

(81 - 112cm)

Torso Range

15 - 19in

(38 - 48cm)

18 - 21.5in

(45 - 55cm)

 One Size
Chest Circumference

29 - 46in

(74 - 117cm)

 One Size
Chest Circumference

25 - 41in

(63.5 - 104cm)

NOTE: Measure wearing the clothes you intend to wear. A vest full of gear will fit smaller.

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