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SJ Ultra Vest 2.0

  • Regular Price


  • #80458314
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Includes 2x 20 oz Bottles with Kicker Valve

Product Description

20 oz Bottles with Kicker Valve included

Scott Jurek designed the SJ Ultra Vest to be the perfect all-around product for everyday use or high-end racing. Comfort and performance are outstanding due to it's technically advanced design and features.

The SJ Ultra Vest 2.0 adjusts to fit a wider size range with the addition of side adjustment straps. Version 2.0 is also stronger and more durable with a 340gm Power Mesh, Silnylon 66 for increased seam strength, and all pockets have been reinforced with edge banding for better gear retention. An added size zipper improves access to an optional reservoir. 

Scott Jurek really understands what runners need, and that is exactly what he designed. 

Specs & Details

Features (Front):

  • Smart Phone compatible pouches (2)
  • Bottle holsters tighten to carry camera, etc.
  • Gel or bar pouches (4) 
  • Electrolyte or valuables pockets (2)
  • Fully adjustable sternum straps (2)
  • Emergency whistle
  • Super soft VelvetexTM no-chafe binding
Features (Back):

  • Micro adjustment straps for better fit (2)
  • Quick reservoir access zipper
  • Internal bungee to secure gear or reservoir 
  • Secure lat pockets, with stretch panel behind (2)
  • Two zippered compartments
  • Trekking pole (2) and Ice Axe (1) loops
  • Extra tall mesh pocket to keep items secure
  • Accommodates a 70 oz. reservoir (sold separately)

Sizing At Chest (Unisex):

  • SM: 23 - 33 in. / 58 - 84 cm
  • MD: 31 - 39 in. / 79 - 99 cm
  • LG: 36 - 44 in. / 91 - 112 cm
  • New adjustment straps fine tune the fit
  • Measure wearing the clothes you intend to wear
  • A vest full of gear will fit smaller

  • Volume Capacity: 427 in/ 7L
  • Fluid Capacity: 2 x 20 oz bottles / 2 x 591 mL (plus optional reservoir)
  • Weight: 11 oz. (16.5 oz. with bottles) / 310 g (468 g with bottles)
  • Height: 12 in. / 30 cm
  • Width: 9 in. / 23 cm
  • Depth: 2.5 in. / 6 cm


  • Silnylon 66: Impregnating nylon with Silicon and Polyurethane creates this permanently waterproof fabric, and also substantially increases its seam and tear strength.
  • Hex Mesh: The Hex Mesh vest structure is completely breathable, extremely strong, and lightweight. Its inability to absorb moisture results in a drier, more comfortable wear.
  • Power Mesh: All pockets are strong and stretchy, made with heavy duty 340gm Power Mesh stretch fabric so the vest expands as you need it to. 

Overall Customer Rating:

4.300 Stars

(Based on 20 reviews)

Write a Review
  • 2 1 1447545600000
    Neil November 15, 2015 Yes No 1 found this review helpful

    MANUFACTURING PROBLEMS, QC PROBLEMS AND HORRIBLE CUSTOMER SERVICE. I bought the SJ 2.0 vest and 70 oz reservoir three weeks ago. The first time I filled the reservoir I noticed a leak in the seam. Every call to customer service has gone unanswered - leave voicemail - no return call. I have also emailed a few times - never a return message. It may be a decent product but it's a risky purchase because Ultimate Direction will ultimately abandon you if you once the sale is made. I'm going back to Salomon.

  • 3 1 1447027200000
    Russ November 9, 2015 Yes No 1 found this review helpful

    I really like the vest, but probably would have preferred v1. The bottles are great, love the way it feels when I'm running. The problems are with the pockets on the bottom, underneath the bottles. Why would they put the openings in the back. They are hard to get to when your running. The other problem is when you add the 70 ounce hydration bladder to it, it really pulls on the chest. It becomes very unbalanced at that point. I use their now discontinued Diablo vest with the 3 liter bladder with no issues. I will use the vest, but only for shorter runs, and I have to still wear a phone arm band to find a good spot to put the phone. I was expecting a little more I guess, but still a solid vest.

  • 3 3 1442275200000
    Matt September 15, 2015 Yes No 3 found this review helpful

    let me start by saying the vest gets 5 stars, its the bottles i have a problem with, the bottles are to hard to use while running. if the bottles were soft like camelbak podium bottles this would be a 5 star review all the way. i will be buying body bottles. added 9.15.15: Now that i have a quite a few more miles with this pack, there are a couple more things i would like to see changed on this pack. also i did buy some body bottles and love them, however i do use a bladder for most of my runs. So, the changes... first the small pockets under the bottle pockets, it would be so much easier to access them if they faced the other direction. on to the straps, it would be nice if the straps were stretchy, this would allow the vest to move with the body instead of feel constricted at times. As for inside the pack a divider would of been nice to separate gear from the bladder. The final change i would like to see is somewhere to put my sunglasses, i have used the pole loops on the back but if those small shoulder straps on the vest were stretchy it would be perfect or just make them large to slip sun glasses under. this is an ultra vest so its common to run in both the sun shine and dark.

  • 3 1 1435708800000
    Harris July 1, 2015 Yes No 1 found this review helpful

    I really like the vest, it's light and seems to fit well. It felt pretty good while running with it but it did seem to move around some and the bottles were bouncing on my chest. With that, the next day I felt like I'd bruised my ribs. I hadn't, but it felt like I did. Maybe I need to adjust it better? I want to use this vest so I'm hoping there's a fix.

  • 4 1 1435622400000
    leo June 30, 2015 Yes No 1 found this review helpful

    overall i am very happy with this vest. i was a little hesitant to buy a hydration vest, after my experiences trying to run with non-running related hydration packs. the UD vest weighs almost nothing. when i put it on for the first time i could tell this was going to be great. the vest sits really high on my back and does not even approach the lower back. the bottles are very high up front as well. it feels kind of weird at first to have the bottles in-your-face like that but i quickly got used to it. the bottles themselves, are just ok. i feel like i have to work really hard just to get water out of them. i am used to the camelbak bottles which are much easier to squeeze. i tried the body bottles that some people mentioned on this review ... but i hate the way they release water as well. it seems you have to squeeze them really hard and bite down with your teeth. the less water in the bottle, the more difficult this procedure becomes. most of the pockets are very conveniently located throughout. the only thing i really dislike about this pack is the so called smart phone pocket. this pocket is poorly sized. my iphone 5 only sits 3/4 of the way inside. not only does that feel unsafe to me, but the pocket is also located on the curve of the strap (right at the collar bone. this is quite annoying. also the pocket hits the water bottle, which kind of keeps the phone from sitting all the way down. having the phone partially exposed right under my face allowed sweat to pour down into the phone causing it to malfunction. from now on i have to keep my phone in another pocket, which is kind of a drag because i like to take pictures along the way. more like 3.5 stars Thanks

  • 5 2 1408492800000
    Tristan August 20, 2014 Yes No 2 found this review helpful

    Finally a Perfect Product! "For the record I have only ever run with hip belts which have had their limitations especially on longer runs with regard to carrying enough equipment, food and hydration. The SJ Ulta Vest met all the additional requirements I was looking for in the hydration vest option. the ability to carry bottles (filled with race fuel) is key and the addition of an optional bladder (filled with water) is great. there are honestly plenty of pockets without the bag becoming cluttered...very cleverly laid out and clearly a lot of consideration has gone into the positioning of storage options. I was also really surprised how light this vest is. My first run with the SJ Vest 2.0 was a 34km Trail Run and to my amazement I did not have a headache afterwards!....testimony to a good fit and weight distribution. the Vest was also not saturated with sweat i.e. essentially the same dry weight before the run as afterwards! The only modification I have made is to replace the Plastic Bottles with the NEW UD Body Bottle....very comfortable against your body! Useful Tip....if you haven't figured it out yet?? To reinsert the body bottle back into the pocket once it loses its form as it starts to empty is to simply just to blow it up like a balloon. Fantastic Running Partner." Pros: Attractive, Comfortable, High Quality, Adjustable, Lightweight, Versatile, Good Fit

  • 5 1 1408492800000
    Tyrone August 20, 2014 Yes No 1 found this review helpful

    I'm very pleased with purchasing the SJ Ultra Vest 2.0. I've searched around several different brands and this vest had everything I was looking for, I'm very sastified. I will be hiking up Mt Fuji this weekend and this vest is perfect for me going on that type of hike, I also plan on using it for a full Marathon in October. This vest can accommodate several different needs during a long or short distance trip, it's great. Only wish it would come in different colors but I'm already in the process of ordering a another product. Thanks.

  • 5 2 1407715200000
    Nick August 11, 2014 Yes No 2 found this review helpful

    This is a great pack for longer runs and races. I have used it for unsupported runs lasting up to ~27 hours. It is also light enough that it does not feel excessive to wear for shorter outings, making it very versatile. The overall fit and feel of the vest is very good, and it will not chafe or bounce once you have made the necessary adjustments. It does seem to take some experimenting to get the fit perfect for each person, so expect to spend at least a little initial time to get everything setup properly. In terms of storage capacity, I have carried two long sleeve shirts, jacket, tights, two headlamps, warm hat, and a days worth of food in the larger rear compartments. When not using a bladder, these items are separated into three separate compartments, which makes keeping things organized easy. The additional storage in the side pockets, and in the front allows for carrying other items (keys, phone, additional food items, etc.). Overall, I feel like this is plenty of storage for daylong outings.

  • 4 0 1405728000000
    Johnathan July 19, 2014 Yes No 0 found this review helpful

    Wore for my first 100 Mile, the Black Hills 100. and it worked great. One bottle for Electrolyt and calories and the other for water. Much easier on my upper body than camelbak. Reason don't give it 4 stars is due to the bottle shaking up front...Really nothing you can do about. Just something to get used to on runs.I did purchase a bladder for it that I have yet to use.

  • 5 1 1405555200000
    Michael July 17, 2014 Yes No 1 found this review helpful

    Absolutely thrilled with the SJ Ultra Vest 2.0. Easily adjusts to fit me perfectly. Plenty of storage... It seems every time I think "I wish there's a pocket right here" I find there is! I'm certain I haven't found all of them. I'm new to having the bottles up front but it was easy to get used to in a few miles and so much easier than a bladder. I did switch out the kicker caps for my regular old school type, they fit the 20 oz bottles. I may put a kicker back on one to get used to them over time. Overall I'm a very happy runner with the SJ Ultra Vest 2.0. Great work UD!

  • 4 1 1401580800000
    Ben June 1, 2014 Yes No 1 found this review helpful

    I am 5'11 and 170. I got the large and it fits awesome. I found the adjustment straps to adjust very easily on the go. I like to adjust a little between ascents and descents. The bottles held great in the front pockets. However, I could not stand to listen to the water jostling around in the bottles. So I bought two body bottles (soft flask) when I bought the vest. They are so much better. There is little to no air when you use them, so sloshing is next to none. They also compress down to almost nothing when empty. I just wish those soft flasks where about 3-4 oz. larger. I carry an extra bottle in the back and and holds great. Highly recommend this vest w/the flasks. Keep up the awesome work UD!!!! The only reason I gave a 4 instead of a 5 is I would like to see the vest come with the soft flasks.

  • 5 1 1396742400000
    David April 6, 2014 Yes No 1 found this review helpful

    I received my SJ Ultra Vest 2.0 on Friday. I picked up the box at the door and wondered if anything was in it, this vest is super light. I took it for a 2:15 run yesterday in the Franklin Mountains. It was a cool day but even on a hot day I don't think the vest will add much heat, it is vented in every possible place. The only time I experienced bounce was when I ran down into arroyos, but that is probably due to the fact that I bounce a bit getting over the rocks and exposed rock face. I was also concerned about sloshing and the vest becoming unbalanced. There was some sloshing noise but I didn't notice it after the first half mile its no worse then a hydration bladder, I found myself self drinking from the left side bottle and it never became noticeably unbalanced. The only other thing I carried was a small phone which didn't fit in the pocket above the water bottle but it never fell out and I will just relocate it to another larger pocket, there are a ton of them to pick from. It's a great vest and exactly what I was looking for and most of my concerns, excess heat, bounce, and getting unbalanced were not an issue.

  • 4 2 1395532800000
    bryan March 23, 2014 Yes No 2 found this review helpful

    I'm 5'10 165lbs 30-31 waist and wear a 38R jacket. I do have broad shoulders and an athletic build. I opted for the Large sized based on the recommendations. I would advise anyone to try it in a store if possible. I found that the Large, even when everything was cinched down to the smallest chest adjustments was just a tad loose. Luckily the new side adjustments were there and I was able to dial the fit in. I have tried the old version in a Large and it was too loose. But these new side adjustments did help a lot and made the fit snug and have very little bounce during my runs. I like to have the bottles in the front as parallel as possible, less than 6 inches apart, and maybe a 5-10 degree angle. some people wear it way too far apart and complain about not being able to access the bottom front pockets. You do have to load the pack properly to distribute the weight with full bottles in the front. but once I got everything organized as far as packing and the fit right, running with the vest was great. I could still feel some weight in the front due to the filled bottles, but it wasn't an inconvenience to my run. I did take it out for a test run on 5 miles of trail... I ran it shirtless, just wearing the vest and I did get some chafing issues on my nipples turns the end of my run. But I did run 5 miles on the road with a shirt on with no issues at all. I do love the additional pocket for the bladder and being able to run the line going from the bottom up. This is just going to be my go for when I go on my runs... just having so many pockets is a blessing. I have a Samsung Note 3 cell phone and the best place for me to put it in the vest is in the small back pocket. or one of the side pockets, but its a bit awkward, but the back is the best. using the front bottle pockets was a no go for my phone. I do wish there was a AK vest with the small side pockets in the back and the side elastic pouch on the front bottle holders... That would have been my idea vest.

  • 5 1 1395273600000
    Baker March 20, 2014 Yes No 1 found this review helpful

    This vest is super on storage capabilities. It would even make a great day hike pack for me! I am 5'-10", 38R sport coat, 155lbs, 32" waist pants, and run a medium in most torso sized hiking packs. I bought the medium, and it fits great with room for thicker clothing. It will also cinch down pretty snug. Yeah, the bottles slosh, but so does your handheld when you run with it?!?! It was not an issue with me. Pack rides great with little to no bounce if you load it properly. The body bottles have no noise and are super comfy with these packs. I ran a 2 hour half mary trail training run in it to test it out. I had one body bottle, one UD supplied bottle, honey stinger waffle, pocketfuel natural, and a gel on the front storage. In the back I had a Northface better than naked jacket. Pack rode awesome. Some condensation did build up in the "bladder" pocket, but you are out there running, sweating, and being great. This was not a big deal to me. This is a great pack for the super long, unsupported trail day or the 100 that is in my near future. I'll turn to the AK vest for 50k and under with a Jurek essentials belt if needed.

  • 5 2 1394409600000
    Travis March 10, 2014 Yes No 2 found this review helpful

    The Jurek Vest has been an ideal item for me on long runs and ultras. I love using it for long training runs in the cold when I need to carry a jacket and fuel, and it was a key gear item for me in the Leadville 100 run.

  • 5 4 1394064000000
    Dave March 6, 2014 Yes No 4 found this review helpful

    I have used the vest a few times now with mixed results in runs up to 20 miles, or about 3 hours.. My two complaints are that 1) I can't get fluid out of the two bottles that were supplied, and 2), the vest bouces considerably when the bottles are used in front, creating a very heavy vest. I have found that if carry one bottle in my hand, it is enough to reduce the bouce, even if the other bottle is full. Maybe someone can provide feedback about why my two bottles seem clogged. (UPDATE) After reading my review, a staffer from UD contacted me and gave me some tips for better usage of both the vest and bottles. Both of his tips were spot on. The vest no longer bounces, and the bottles are fully functional. (Thank you, Justin). I'll be putting it to the test again this weekend in a mostly muddy 50-miler! I read and write a lot of reviews. Very few companies pay attention to what is written in reviews of their products and services, but I appreciate that UD does! Fantastic, friendly customer service. I'll be back to this site when I need additional gear in the future.

  • 5 1 1393804800000
    Martha March 3, 2014 Yes No 1 found this review helpful

    I love this vest!!! I was using a Camelbak and after years of use and washing, it leaked and never had the right amount of space I need for keys, phone, tissues, etc. I love the fact that this vest comes is so many sizes. I had at first ordered the wrong size and after talking to U.D., I was able to trade it quickly and easily. Thank you for having such great customer service. I will definitely buy something else with your company again!

  • 5 1 1393286400000
    Timothy February 25, 2014 Yes No 1 found this review helpful

    Ultimate ultra vest

  • 5 3 1391904000000
    Chris February 9, 2014 Yes No 3 found this review helpful

    I received my vest the night before a medium length 3 hour run. I was pretty excited and filled the 2 20oz bottles that came with it, fit several different brands of gels in the 2 pockets next to the bottles, in the two pockets under the bag in back on the waste belt area i fit in one side a small first aid kit and small pack of kleenex, and small bag of Valentines candy. The other side waste band pocket, a ziplocked iphone5, a big protein bar, and extra space, in the large rear main compartment i first put my down OR Transcend jacket(replaced it with a Salomon Momentum jacket instead), in the other of the three sections in the large compartment i fit a face ice shield, a beanie, a fleece ear warmer band, there would have easily been room for my Cammelback bladder in the third compartment. It felt balanced loaded this way. I am 6 foot 3 145lbs 33 inch chest. (Probably suck in air before measuring ) i ordered a medium and the chest straps are adjusted on top almost all the way tight and the bottom 3 inches out. The internal adjustment i pulled in an inch on each side. I was running where the Ultra Buffalo Run takes place (Antelope Island Utah). The conditions were Slush, Ice, mud, High winds. This was my first bottle forward pack, it took about 2 miles to stop thinking about it before i forgot it was on. My other hydration pack was a customized Cammelback pack ( that rubs my shoulders ) or my Cammelback waist flask belt. Overall i can honestly say i forgot i had it on until it started being really windy and i took it off to pull the jacket out. I drank the bottles one at a time and it didn't change its balance. When i got back there was condensation in the top of the main compartment, because of this i would ziplock things that aren't waterproof. I The construction seems strong and I am extremely satisfied with the pack. The only thing i would change is add a front iphone compartment above the water bottle. I will probably sew a waterproof one on. Nothings ever perfect because everyones expectations and uses are different.

  • 4 6 1391385600000
    Kevin February 3, 2014 Yes No 6 found this review helpful

    Lately I’ve realized that there are times when there are runs that fit somewhere in between those shorter runs and all day outings that seem to becoming a regular part of my training. Runs lasting between 2-6 hours seem to pop up on my calendar more and more, as do races where aid stations are spaced pretty far apart (relative to road marathons The first thing I noticed was that two bottles were included. This is important since the pack doesn't come with a bladder. The second thing I noticed was how short the vest was. I laid it side by side with the S-Lab 12 for comparison. The short length gives it a nice light & airy feeling, which translates over while running. Stash Pockets I was giddy at the prospect of being able to carry tons of nutrition up front. The pockets under the holsters fit granola bars and pocket knives perfectly. There are two grey mesh stash pockets above the bottle holsters that stretch to accommodate smaller cellphones, but not iPhones, MotoX or Galaxy S3/S4.That means if you run with your cellphone you will either need to stash it in the back or give up a front bottle holster so it can stash within easy reach. Lots of people carry phones when running (either for calls or for picture taking). It’s hard to believe zero of the eight pockets were large enough to hold a smartphone. Sides There are two pockets on each side of the vest. One ozips closed and one is open with a small piece of Velcro at the rim. These side pockets are large enough to accommodate an iPhone, a SteriPen, a small headlight or gloves. They are not large enough to hold visor, ball cap or say, Kahtoola Microspikes, which I carry in my S-Lab side pockets during spring on Rainier. Materials Soft edges, clean stitching and straps that stay cinched and don’t come loose make this a solid piece of gear. Fit I’m 5’8”, 150 with a 36-inch chest and a medium fit me well. This pack has straps under each arm that provide enough adjustment to make sure the front chest straps don’t bottom out. They side straps are hard to adjust while wearing the pack and I found myself taking the pack off to make these changes, which was no biggie. I was just a little bummed because the YouTube video looked like they were accessible while running. Also, the Nathan HPL has side straps that are easily adjusted while running. I don’t like stopping. With the SJ 2.0 I had to. The two bottles that come with the pack felt like they were teeter-tottering on my chest the way they are placed and caused the front of the vest to lift away from my body slightly. Salomon has a triangle bottle that fits the S-Lab 12 chest holster and it sits flat against the body, which is a feature I wish UD had incorporated. I fixed this by using a 20-ounce Hydrapak collapsible bottle I found at REI. Loading the vest I was so excited to load this pack up. I put a gel in every single vertical stash pocket I could find. I put a Larabar and a medium sized pocketknife in the two horizontal pockets under the bottle holsters. Since I carry a phone when running I removed one bottle in favor of using the holster to stash my cell. There was still plenty of space left in the holster where my phone was so I added an 8-ounce softflask with Perpetuem and a gel as well. Run Firstly, in my excitement I inadvertently front-loaded the vest way too much with hydration and food. It felt unbalanced. I moved my flask and some food to the back. Once I did that the vest felt fine. A little longer into the run I wanted to cinch the vest down even more, so I stopped and adjusted the side straps to snug it in a bit. This was perfect. The vest often times was hardly noticeable. Often times I would find myself not thinking of the vest at all, which is the way it should be. I swapped the UD plastic bottle with a collapsible bottle from HydraPak. It’s essentially the same material used by Softflask and the bladders made by HydraPak for Nathan. This improved the fit and feel up front since the bottle conforms to the shape of your body. On a long test run (15 miles on a dry 43 degree day) I noticed condensation build-up in the middle compartment of the rear. Any clothes or items that you want to be dry should either be placed in a zip lock when stored there or kept in another pocket. The smaller outside pocket in the rear (intended to hold smaller items) didn't get damp. Summary I like this pack. Its design is simple, well thought out, efficient and practical. This vest will most likely be my go to piece for supported ultras, all day summer runs where weather is not a concern. For carrying a cellphone I’ll just continue doing what I do now with my S–Lab and put the phone in one of the bottle holsters up front. I wish there was an easy spot to carry a visor snugly. If those two things could be fixed it would be near perfect.