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Ultimate Direction AK Mountain Vest 3.0 (Closeout) Running Hydration Vest


Sale Price $79.95


You Save $75.00 48%

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Sale Price $79.95


You Save $75.00 48%

Availability: In Stock!

Ships Monday.

Availability: In Stock!

Ships Monday.
Item # ULT16202M
A reflection of ultrarunner Anton Krupicka’s minimalist approach to alpine and mountain exploration, the Ultimate Direction AK Mountain Vest 3.0 incorporates the hydration and storage features you truly need while skipping anything extraneous.



A reflection of ultrarunner Anton Krupicka’s minimalist approach to alpine and mountain exploration, the Ultimate Direction AK Mountain Vest 3.0 incorporates the hydration and storage features you truly need while skipping anything extraneous. The end result is a great-fitting pack that keeps essentials close at hand while provide free movement to go far and long.

Constructed of lightweight SilNylon and breathable mesh, the vest weighs in at just 6 ounces. To ensure a proper fit, the vest is available in Small (23"-33" chest measurement), Medium (31”-40”), and Large (36"-46") sizes. NOTE: When full of gear, the vest will fit smaller. Dual sternum straps with sliding adjustability help you fine-tune fit.

The main compartment offers 351 cubic inches of storage for a lightweight shell or other gear. An upper compartment is sized to carry a 2L hydration reservoir (sold separately). On the chest portion of the harness there are twin water bottle pockets which conveniently secure soft-sided or hard-sided water bottles. Ultimate Direction includes two soft-sided Body Bottles with 500 ml capacity. Other features include phone-compatible harness pockets, on-the-go trekking pole attachment points, an emergency whistle, and dual ice axe loops.

California residents: view proposition 65 WARNING

  • Sliding rail sternum straps
  • Bottle holsters tighten to carry phone or camera
  • iPhone compatible pocket
  • Unique, on-the-go trekking pole holders
  • Double ice axe loops
  • Soft and flexible 150g mono-mesh
  • External stretch pocket for organization
  • Secure lateral pockets



Best Use Running/Fitness
Access Panel Loading
Volume 351 cu in
Type Running Hydration Vest
Sternum Strap Yes; Two adjustable
Material Knit Mono Mesh, Power Mesh, and SilNylon
Item Weight 6 oz w/o bottles
Torso Adjustment n/a
Hydration Compatible Yes; 2 500ml Body Bottles included
Dimensions 15.75" x 11.42" x 5.12"


Real Customer Reviews

Average Rating:
(based on 8 real customer reviews)

8 Items

Light and Easy
Reviewed by Brenton W. - July 27, 2018

Likes: Light
Easy to Adjust
Doesn't Bounce
Great Storage

Dislikes: None

Excellent pack
Reviewed by Justruntrails - April 5, 2018

Likes: This pack is amazing, i run long distance races, 50k and up and this is so lightweight but can hold everything I need. Trekking poles latch right on up front. Water bottles are placed perfect. Highly recommend.

Dislikes: Haven’t found any yet

Great Product
Reviewed by Nate - March 29, 2018

Likes: I bought this vest for the large amount of storage. I was disappointed when I discovered I bought the wrong size but I was able to send it back and have the correct size all in the same week. The customer service was top notch.

Dislikes: None

Fantastic fit
Reviewed by Andrew L. - December 26, 2017

Likes: Variety of storage pockets is great! I'm using a water bladder in the back and one of the front water pockets for a compact camera (Sony Rx100). I'm surprised at how light it feels fully loaded, compared with my previous pack.
Easily carries enough for 50 miles unsupported running (bring a water filter).

Dislikes: Not much to dislike about the pack.

perfect hydration pack for Ultras
Reviewed by Khris V. - November 22, 2017

Likes: tons of storage in all the right spots. Easy access to food and items. Perfect holders for trekking poles. Easy on and off to get to item in the back pocket. Light and hold water bottles with out too much bounce.

Dislikes: Took a long time to dial in the fit and get it snug enough so there was no bounce in the vest and bottles. Perfect since the fit was locked in.

Reviewed by Jessie F. - May 2, 2017

Likes: I really like how it feels, it fit snuggly and very comfortable. It has enough adjustment options that don't smash my chest. The soft water bottles feel very good in the chest.

Dislikes: It caused chaffing on my shoulders.

This is a super vest for both long trail adventures and fast trail races
Reviewed by Nahir N. - April 24, 2017

Likes: I already have about 40+ miles on this vest and I love it. It has alot of reachable pockets/storage in the front so you rarely have to take the pack off for small gear. Another great thing is how light and breathable it is, compared to an old Nathan Vapor I used to wear, the AK vest beats it by a landslide. The best thing about the AK vest is the addition of 6 bungy cord hooks at the perimeter of the giant pocket in the back. The hooks aallos you to compact the back of the pack very tightly in order to use for short runs or as a makeshift race vest and eliminate any unwanted movement in the back when you don't have gear in the back.

Dislikes: The only complaint I HAD was that the bottom sternum straps in the front bruised over my lower ribs but after the vest softened up from sweat and its first rinse/wash, the bruising stopped.

So much room for such a light weight vest!
Reviewed by Piperrenee - September 4, 2016

Likes: Pockets, Pockets & More Pockets!! There is space in this vest to carry enough for an unsupported 30+ miler! I went out for 25 miles yesterday & carried 3 liters, 2 honey stingers, 7 gels, 2 cliff bars, my first aid kit, cell phone, a jacket, trek poles & a buff AND it all fit with some room to spare! Very lightweight!! I love the trek pole loop locations! I'm a female & this fits so nice!! No bounce! I love this vest!!

Dislikes: The mesh on the back doesn't breathe as well as the Jenny Ultra Vesta.

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