Ultimate Direction  Mountain Vest 6.0 Hydration Vest

Color: Onyx
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With quick-adjust sternum straps for layering, versatile pockets and external compression, the Ultimate Direction Mountain Vest 6.0 hydration vest is built for your long runs in the mountains.


  • Upgraded Comfort Cinch™ features High Molecular Weight Polyethelyne cord for extra strength and an air mesh panel to prevent chaffing
  • Waterproof main pocket with easy-access zippered clamshell opening
  • 1 waterproof shoulder stash pocket and 1 water-resistant shoulder stash pocket
  • Zippered water-resistant phone pocket at front chest
  • All pockets are accessible while the vest is being worn
  • Front buckle sternum straps with sliding rail adjustments
  • Includes 2 HydraPak 500 ml bottles
  • Large rear compartment can accommodate a 2 L reservoir (not included)
  • Comes with 4 hooks and bungee loops to attach trekking poles (not included); poles can be attached at the front or back of the vest for customizable carry options
  • Upgraded shape wraps completely around the body for a more secure, vest-like fit
  • Roomier cut in the back and spacious armholes provide a wider, taller fit for larger frames than the Ultimate Direction Mountain Vesta 6.0


View all Ultimate Direction Running Hydration Vests

Technical Specs

Item #218975
Best Use

Trail Running

Gear Capacity (L)

13.4 liters

Gear Capacity (cu. in.)

817 cubic inches

Reservoir Compatible


Reservoir Included


Bottle(s) Included

2 bottles

Liquid Capacity (L)

1 liter

Liquid Capacity (fl. oz.)

33.8 fluid ounces

Number of Exterior Pockets



8.1 ounces


Flex Mono mesh/MicroMono mesh/20-denier sil nylon/nylon/elastane with ripstop

Fits Chest

S: 23-32 inches

M: 30-39 inches

L: 37-46 inches



Size Chart

Rib Cage Circumference20–4030–4623–3230–3937–46

Sizing Notes

Measurements are stated in inches unless otherwise indicated.

3 reviews with an average rating of 3.3 out of 5 stars

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