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  • Ultimate Direction Signature Series 3.0: PB Adventure Vest

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PB Adventure Vest 3.0

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The Peter Bakwin Adventure Vest 3.0 is the culmination of the Signature Series®.  It can carry 1 1/2 gallons of water up mountains, across deserts, or wherever your adventures take you.  Version 3.0 has greater capacity while still weighing less than the previous version.

NOTE: 3.0 vests fit differently than the previous versions; please check the Sizing Chart below.

Specs & Details

  • Sliding rail sternum straps
  • Bottle holster tightens to carry phone or camera
  • iPhone compatible pockets
  • Unique, on-the-go trekking pole holders
  • Double ice axe loops
  • Soft and flexible 150g mono-mesh
  • Two mesh pouches for wet or voluminous gear
  • Secure lateral pockets
Sizing at bottom ribs (Unisex): 
  • SM: 24 - 33 in. / 61 - 84 cm
  • MD: 31 - 40 in. / 79 - 102 cm
  • LG: 36 - 46 in. / 91 - 117 cm
  • Measure wearing the clothes you intend to wear
  • Unisex Sizing - Please confirm your bottom ribs measurement before ordering
  • Volume Capacity: 977 in/ 16L
  • Weight: 13.2 oz. (14.43 oz. with bottle) / 377 g (412 g with bottle)
  • Height: 17.3 in. / 44 cm
  • Width: 9.4 in. / 24 cm
  • Depth: 9.1in. / 23 cm



  • 150g Knit Mono Mesh: New 150gsm harness conforms to your body for absolute comfort and superior load carrying
  • 180g Darlington Power Mesh: Lightweight strength with differential stretch in the x and y axis for enhanced load management
  • SilNylon/66: Silicone-Impregnated 30D nylon with a polyurethane face creates a permanently waterproof fabric, and substantially increases seam and tear strength
  • Product Reviews


    Write A Review

    1. Love Your Inner Burrito!

      Currently used the vest for 6 months on running and day hikes - in later summer and winter

      I cant add much more praise than highlighted below - but believe the burrito pocket to be a very useful option.

      It will carry a bottle, radio or snack pack very easily

      This is an Adventure vest designed for adventures, not just ultra running.
      on Feb 1st 2017

    2. Why a burrito pocket?

      I love my PB Adventure West 2.0 and was excited to learn about version 3.0. I like the additional space and new color, but do not understand the burrito pocket. I agree with the reviews stating that a second bottle holder would have been a smarter design. I hope that version 4.0 corrects that design flaw. on Jan 26th 2017

    3. Burrito Pocket is perfect

      I use mine for mountain biking and the burrito pocket is fantastic. Holds tons of stuff. I use mine with a 100 ounce bladder and carry food, wet-gear, and "bike stuff." Works way better than traditional biking backpacks, doesn't budge during steep downhills, and I never have to worry about a waist strap loosening when things get technical. I can see how some runners might not like the burrito pocket because they like those useless squeeze bottle water-bag thingies and they want more than 1. Hope they make this one in the new Canyon color. on Jan 15th 2017

    4. burrito pocket... useless

      The burrito pocket is useless. Why you need this pocket if there is already a lot of them elsewhere? This model need a redesign ASAP. I need a backpack with a lot of capacity like this but the burrito is useless. on Jan 2nd 2017

    5. Better access to pockets/bladder/poles than the 2.0

      I loved my PB 2.0, although there were a few quirks I just accepted. The loading/reloading of the bladder became a pain during an ultra distance split over three courses. (I had to refill the bladder between each course, and that took some time). I was also teetering on the edge of not having enough accessible pockets during really long events. Lastly, removing the vest to access anything on the back was kind of a pain, but I dealt with it.

      This is all fixed on the 3.0 - Tons of accessible front space, and access to even the back pockets without taking the vest off. Quick release for poles, so I can decide to use them without an ordeal of taking my vest off while running, while simultaneously watching the trail so as not to biff.

      While I was initially concerned about the 3.0's decision for a bottle and burrito pocket vs the prior two bigger bottle pockets, I've learned that the 700ml SmartWater bottles slide in just fine, without pushing against my chest or fear of them bouncing out. The SmartWater bottle design is taller and slimmer than traditional hand/bike bottles, while still providing 24 oz of easy access fluid. SmartWater bottles are food grade PET1 plastic, so they're re-usable without the plastic leeching into the contents of the bottle. I'm sure you can even stuff a 1L SmartWater bottle in the bottle pocket if you really needed a lot of extra fluid.

      I would give the PB 3.0 5 stars, but I'm a bit of a weird size, and the Small is too small when completely loaded, and the Medium is just a smidge too big when completely empty (no bottles in front, and a near empty 2L bladder). The waist does provide additional cinching straps inside the velcro pockets, but I've made due with the bungee to shore up additional material for the chest. While not the best fix, I'm hoping the PB 4.0 will give more options for fit adjustment. In the meantime, I'm enjoying this awesome piece of equipment for seasons to come!
      on Aug 26th 2016

    6. From PB v1.0 to PB v3.0

      I still have the original PB v 1.0 and cannot wait to get the 3.0. The original PB has been my best buddy for several years, extremely tough in very harsh conditions. It may sound funny but I think of this UD gear as almost a good luck charm. I know I will make it out of what ever challenge I set for myself without gear failure. Thanks for your great products on Jul 21st 2016

    7. Amazing high volume pack

      I purchased this pack for training and racing some longer, more mountainous ultras, as well as having the freedom to pack a bunch of stuff if I needed it. I still own a version 1 AK vest which I thought I'd use for shorter runs. Nope. The PB 3.0 has become my go to vest for pretty much any run longer than 10miles or 2hours.

      Best features:
      *the soft body bottle, in terms of comfort. It is a little hard to get into the pocket designed for it, in fact I find it easier to store it in the burrito pocket, which everyone has complained about, but I prefer it.
      *the separate hydration zipper, with a thoughtfully designed choice of routing it through the right of left side.
      *the mesh pockets on the side of the body; I put my whole keys in there, and they don't jingle at all.
      *the water resistant pockets. I store salt tabs in the small pocket near the clavicle and I store my credit card and money in the back small water resistant packet
      *the back stretchy pocket that is easy to shove my jacket in and out of without taking off the vest
      *the fit. I am 33in around chest. Couldn't be happier in the size small.

      Things to note:
      *the sternum panels are longer than the other UD vests, and the first thing I noticed is how they felt like they were cutting into my stomach. I got used to that real quick and don't notice/care anymore.
      *don't listen to anyone complaining about the burrito pocket.
      *you can fit SO MUCH stuff in here. I run commute with my clothes and wallet and lunch. I run to the grocery store, buy food and run back. Tonight I was running home and made an impromptu store run and stuffed a 12 pack of tortillas, a block of cheese, an avocado, a can of salsa and a 22 oz beer in there. One time I ran to the hardware store and loaded up the vest with home improvement tools I needed. I often collect rock samples for my collection from runs, so sometimes I load it up with rocks. This might be a strange thing to do, but the vest can do it, in case you were wondering.
      *I'm a woman. I liked the PB vest more than the "women's" equivalent I tried on, mostly for the jacket stuffer pocket and the total volume it can fit. I'm also partial to the color and fit and comfort. Love it!
      on Jul 9th 2016

    8. quick review from a woman's perspective

      Wow, I love this pack. I'm 29" at base of ribs and 34A, and the small is perfect whether it's a light load or fully packed. It's a little "warm" but just perfect for mountain and alpine running/power hiking. The poles fit in the front bungees perfectly with no bouncing or falling out at all--the bungees are tight enough that late in a race I almost have a hard time removing the poles. I love all the front pocket access and am still learning how to use the side pockets which i can reach but cant fit too much in yet--I think it's a learning curve. I've tried two body bottles up front, 3 body bottles up front with one extra in the back stretch pocket, one body bottle plus a 50 oz bladder in the back, and all sorts of foot and clothing combos stored in the pack. It manages an impressive amt of weight without bounce and without causing sore points on the shoulders or any chafing whatsoever even after a verrrrry long day in the high country. Can't wait to use it again... on Jun 27th 2016

    9. 4.5 Stars

      Lets get the negatives out of the way first. There's not many though.

      - Sizing is problematic. Just like all the other versions, so you might as well be used to it by now. I'm 64 inches, 140 pounds, 34 inch measurement at the base of the ribs. I need a medium just like the sizing guide states, but it's not that simple. I could barely get the Small on. I have a LOT of room to spare in the Medium. If it wasn't for the hidden lateral straps I would not be able to dial the fit in without the pack being stuffed full. Thankfully I was able to get it locked in. I must have the top sternum strap cinched down all the way but with tightening of the lateral straps I don't have to do the same with the bottom sternum strap, so I have some play there.

      - Asymmetrical design. I would prefer bilateral bottle holsters and the inclusion of second body bottle. But there is a way to compensate for this issue. Most people put a second body bottle in the burrito pocket and while it fits there easily, there is a lot of movement in that location. I prefer to place my additional body bottle in the stretch mesh catch all pocket below it. It doesn't move at all there. The sternum rail system is good at accommodating the awkward distribution of weight in this setup by adjusting them on an angle like the Salomon packs.

      Everything else about this vest is amazing! It's incredibly light. Has a ton of storage, and can cinch down well even when you are running with next to nothing in it. I don't typically run with bladders but I was able to fit a 100 oz one in the sleeve, though I couldn't top it off. On my recent test run I packed it completely full with the addition of trekking poles and I was very happy with the lack of bounce. There was some as to be expected, but the vest carried it all very well. I am extremely happy with this purchase!
      on Jun 27th 2016

    10. Versatile and Functional. It doesn't get any better than this.

      All day adventure. There is so much accessibility for storage. I added a bladder and a second body bottle plus to compliment the bottle that it came with. The burrito pocket is the best!!! It's great for burritos, fruit or anything you want to have quick access to munch on without removing your pack; you can even keep a second body bottle plus in there. Genius!!

      on Jun 15th 2016

    11. The best parts of 2.0 and then some

      I love the fully separate and bigger hydration reservoir part. I can fit my 100mL bladder in much easier than the 2.0. The more tucked away hydration hose options are also very nice. I have always disliked not having something to keep the hose from flopping all over the place, so having my hose kept tucked away and behind the pockets keeps it out of the way until I need it.
      Also it seems that I have a lot more room in the main pocket without all the internal cords and such running all over the place.
      The reduction of one bottle holster in the front is a sacrifice I am willing to make for the huge burrito pocket. I can fit my phone in it, making it easier to run my events and keep track of my team on the go without twisting my arm around to try and fit it into the little hip pouches from the 2.0.
      I do miss a few of the side stretchy pockets on the sides of the front water holders. That were great for holding gels, but the real big one on front of the burrito pocket will most likely make up for any lost room.
      Side pockets seem bigger and easier to get in and out of compared to the 2.0 version as well.
      Super stoked to see how this holds up on my upcoming Long Distance Pushes this summer. The 2.0 bag was awesome this one looks like I am able to cary more, just as comfortably, with quicker access to what I might need without taking it off. Well done.
      on Jun 11th 2016

    12. What about those of us living in hot desert regions? No option large bottles or 100 oz bladders?

      I'm surprised most of these packs seem designed for tiny water bottles and less than 100oz bladders. Running in the cool Rockies is a lot different than running in the 100+ degree mountains and deserts of Southern California.
      Those little flask are just a couple sips for our needs here. 70 oz bladders are for short distance runners out here. 100 oz plus a couple 16 oz is just enough to do a 30-40 mile run in the heat here. Any chance of making one that can accommodate such needs?
      on Jun 5th 2016

    13. burrito pocket...bad idea

      The burrito pocket is really useless, prefer to have the same bottle holsters on both sides. Why you want the burrito pocket if there is already a lot of pockets elsewhere? Furthermore it closes in one direction only. Please redesign this model, I hope that soon take out a new version with 2 bottle holsters. on May 28th 2016

    14. Great for Running to Work

      I work part-time at REI and I love being able to run to work with my clothes. on May 16th 2016

    15. PB Adventure 3.0

      Just bought the PB Adventure 3.0 even though I was concerned it appeared to have only one bottle pocket on the front but in fact it can take 3 soft bottles. The burrito pocket and the mesh pocket in front of it can also take one. Going for my first run in it tommorow but so far it looks like it is able to hold all the mandatory gear for a long ultra no probs. on Apr 9th 2016

    16. Improvement

      Had the 2.0 during several trails up 100K. Great.
      Now got the 3.0. Really an improvement.
      More place for stuff, separat pocket for water bak,
      extra fixture at the front for pools, additional adjustment
      belts for chest size and more .......
      (Sorry for wrong wording, author is German ;-) )
      on Apr 2nd 2016

    17. Huge Upgrade

      Lots of storage. Great fit. I am 220 and the large fits me fine with room to spare. I dig the extra organization for all-day outings. on Mar 31st 2016

    18. Great pack

      Got my PB 3.0 the other day and thought I would go for a couple of runs before writing a review.

      It is a very well made pack and feels good quality.

      the main party trick of the pack is how much upfront pockets and storage it has. The burrito pocket will hold a 2nd soft flask and still have room for energy bars, gel etc the side pockets are easy to get to and you dont need to be double jointed to get to them!
      I do really like this pack and it will now be my go to pack for longer runs or fast hikes.
      The only thing I would say is, I am a 38" chest and with two jackets in the back pack and some other bits and bobs I had the sternum straps pulled to the stops still had a little movement in the pack.
      on Mar 24th 2016

    19. Um, have any of the above reviewers actually worn the pack?

      Because it has multiple options for dual-bottle carry. The burrito pocket can hold another, as well as the mesh pocket below it, and the side pockets are sized for additional bottles. It looks like an awesome improvement to me, and in keeping with UD's pretty ceaseless R&D. Do you seriously think they were going to bring out a worse version? PB's got you covered, dudes. on Mar 15th 2016

    20. maybe next time

      I wanted to buy this version so badly until I saw only one water bottle up front. I really don't understand their thinking. Every other vest they make has 2 front the ones with the rear reservoir. Really disappointing because I love all the extra storage this one has over the SJ on Mar 9th 2016