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Sizing At Chest (Women's):
I tried on a number of uni-sex and men's packs, this one was the most comfortable on my chest by far. I like how adjustable everything is. The pockets are a good size for fitting a cell phone, keys, snack bars, a wind-breaker, and first aid kit. The bottles in the front are difficult to drink out of while you are running, so I'll probably replace the lids with the longer straw option. Also, the front bottles sometimes bounce around, seems like this could be easily remedied with some kind of tie around the middle of each bottle - but I haven't tried this out yet. Overall, fits great, is comfy on my body and is a nice size. Holly on Feb 5th 2018
Seriously, I love it! It feels like I have nothing, but with everything I need! Definitely a huge upgrade to my running routine! I could go on, and on.
If you're not sure, well, become sure! This is definitely what you're looking for! xx Unknown on Oct 25th 2017
Feels like you are running with nothing on, light and easy, not to mention a great amount of space to store things.im impressed. shannon on Oct 4th 2017
Love their products and their great service! Jeannine P. on Sep 21st 2017
Generally I like the Jenny Ultra Vesta. I bought a small (I am a size 2, approx 5'6", 115 lbs) and the chest straps are almost too small. But my biggest complaint is that the lat straps pull backward, and not easily, either. You should be able to adjust them by pulling forward - that's backpack design 101. Unknown on Sep 15th 2017
I had read horror stories about vests being hot, itchy, unbalanced. This vest is amazing! I've used it on solo runs where I want to pack a PLB and lots of water -- it's been great. The mesh makes it cool and it fits so much comfortably. I've even used it on short local hikes. I'm super happy with my purchase. Pam on Jul 24th 2017
I would have given 5 stars but I cannot deal with the whistle. It does not stay in place and it constantly clinks. I know this may seem minor but try dealing with it on a two hour run. The pocket that they claim holds the larger phones is simply not true. Becky on Jul 19th 2017
All the pockets are perfect for gels, keys, goos, you name it. Unknown on Jul 11th 2017
I have been marathon training on and off since 2004. I have suffered from crazy nausea after a long run. The hydration vest has allowed me to carry my preferred fuel along with me. I have a spot for my phone, key and extra gels if I want one just in case. Sunday I brought an extra shirt and half way through my 20 miler, changed into a short sleeved top. So far so good! Julie B on Apr 24th 2017
Just started running as my new year resolution (I know cheesy) but this pack has helped me hit my running goals. Love the weight and custom fitting that it gives. I always have space for a long hike or my daily runs. Sierra on Mar 14th 2017
I don't generally write reviews, but as I spent hours and hours trawling the internet and then further hours once I had made my decision to buy the ultra vesta, which size to get, (I got the M/L in the end - I am 5'6", 38" chest and 27" waist, slim built but surprisingly the bottom strap on the vest is at it's widest point!!) Would have liked the two straps to be more elasticated, at times I feel constricted in the rib area and as I said it is extended to as far as it will go although the top strap I have plenty of extra left over.
So onto the body bottles. Love them, so much more practical than hard bottles, no sloshing noise, but.....if I mount them as shown on the video so that the hard see through plastic top of the bottle is outside the pocket, when running fast the bottles come out, and if I put the hard plastic tops inside the pocket, when you drink from them and they are no longer full they slide down into the pockets, making access less easy. Slightly disappointing with these two issues as I really want to like this jacket... Jane on Feb 13th 2017
Nice pack, but very small capacity. Good for races where you need to carry a jacket and a few odds and ends, but not very versatile. Most times I need a pack are for longer runs. I'd recommend the Adventure Vesta if you're planning to only get one pack. Unknown on Jan 4th 2017
Just got my Ultra Vesta in the mail a few days ago and took it out for a 10 mile run the next day. Overall I really liked it. It took me a few miles to get the straps adjusted correctly, but once everything was tightened they way it should have been I didn't have any issues. It was rubbing one side of my neck for the first half of the run (easily solved by pulling the collar of my shirt between the shoulder strap and my neck) and the rubbing stopped once the water bottles weren't so full. Looking forward to seeing how it goes next time since all of the straps will now be adjusted from the get-go. Unknown on Sep 5th 2016
It's light, harmless and accessible. You can put a 3lt bag in the back side. The only complain that I have it's that the empty soft bottles can fail easily from the pockets, I lost one of them running. More than that it's great for long distance races and ultra marathons. I would like to have included the water reservoir with this hydration pack, not to purchase it separately. I had the mule camelbak previously and it chafed my skin, this product doesn't. David Enciso on Aug 4th 2016
This purchase was not made lightly. I look, shop, review, google, compare...and hesitate.
I am a newer-ish runner, having consistently run for less than a year. For the past few months, I have relied on a hand-held water bottle and hated it, even on short runs. Add to that a running belt to hold everything I needed, and I felt loaded down.
As I am starting to run longer distances (and it is hot and humid no matter what time of day I am out right now), I really needed something that gave me more fluids and more space to hold keys, phone, fuel, etc.
I was hesitant to spend the $ for this, and I do not currently have the bladder for the back. But I was sold on the soft water bottles in the front, and the reviews that said "no chafing."
I went on an 10 mile run, in a tank top, to see just what I thought. I did have to stop a few times to tweak everything. And at one point, the chew top on one of the bottles fell off, causing a gush of water everywhere (it took me a second to figure out what happened- not really sure still, but I did find it and was able to put it back on.) I was pleasantly surprised that I did not chafe anywhere- although it was rubbing a little on my neck, but once I drank some water, the weight shifted a bit- so now I will just be sure not to fill the bottles all the way, or continue working on fitting the vest so it sits better on my body.)
I am 5'3", about 145. I purchased the M/L size and the front straps are pulled as tight as possible. However, I don't think the XS/S would have given enough room, especially when it gets a bit colder and I add a layer or 2. Even 10 miles and sweating, this was breathable, light, and felt like next to nothing. It does take some time/adjustment to get used to the front bottles, but it was super convenient and hands-free felt very- well, freeing.
Since I have only used this one time and do not have the back bladder, I don't want to give a full 5 stars- however, if I purchase that at some point or when I have worn it several times, I would love to come back and update this review! InTheRealm on Aug 2nd 2016
I have finally found a pack for trail running/racing that has exactly what I need. It is lightweight and breathable so it doesn't feel hot on my back when it is warm out. Just the right amount of storage and fits perfectly to the contour of my body. It is an amazing pack and I have tried just about everything out there! trailgirl on Jul 31st 2016
I'm just starting to do trail runs longer than an hour, so I wanted to start carrying water. I had a really nice waist belt but it always rode up and couldn't carry everything I wanted to have handy. I was skeptical about whether I could tolerate a vest - I perspire a LOT when exercising and I didn't think I would like having so much of my upper body covered. My concern was unfounded - after a 7 mile inaugural run in this UD Ultra Vesta, I'm a running vest convert. The vest was snug but I didn't feel that it was holding in my body heat. No more running with a bouncy waist belt for me! I'm 5'11" and 145 lbs, with a 36A bust/chest, and the M/L fits me perfectly.
One possible reason my running experience was so good is the weight of the vest. The Ultra Vesta weighs only 7 ounces. I also ordered the Nathan Women's Intensity and its weight is almost double that of the UD Ultra Vesta (13 oz for the Nathan).
I will mention that I was doubtful about how the water bottles would feel on the front of the UD vest, in the bust area. I previously tried on the UD Men's SJ Ultra Hydration 3.0 vest (sometimes men's products fit me better because I'm tall) but the water bottle tops were in exactly the wrong place. Ouch! (My husband liked the fit just fine though, and kept the vest.) The bite valves aren't too hard to press but there is no leakage. The wide bottle openings are nice - I can add ice cubes if I like. Unknown on Jul 17th 2016
I get tons of compliments on this pack and several friends asking to try it out. It works perfectly with the 50 oz reservoir. I fill my Body Bottles with Tailwind, one caffeinated and one not, and fill the reservoir with water for long runs. It's very comfortable and hold everything I need for an ultra! Unknown on Jul 8th 2016
So I had the first gen Jenny pack, bought it on day 1 of release and wore it religiously for ultras & marathons and countless training runs. I found that I outgrew the small 10oz bottles quite quickly in warmer weather and was never a fan of bladders due to not being able to see how much fluid I had left, so I tended to use a 24oz handheld instead of carrying all that extra material on my body, sortof like an extra singlet when the last thing you needed as another layer of clothing! I loved the fit, no chafe, no bounce ride for 3 seasons but for summer, it just was too much material for not a lot of hydration capacity payoff.
Well that all changed with 2.0!! The material is lighter, more airy, and stretchy for more gear. Hydration bottles are way easier(bite valve vs old pop tops) and collapse as you go for no slosh ride and capacity went to 17oz per bottle!!! YES!! Soft no chafe bindings around the edges. Mesh that doesn't cheese grate my shoulder blades or shoulder tops as I swing my arms. Waterproof front phone pocket that zips for security, plus 2 rear waterproof zip pockets for essentials. The dual zipper on the big rear pocket was so smart! I have had to dig down into the big pocket along the side of a darkened trail before with my first gen. No fun!
Overall, this is a worthwhile upgrade from version 1 if you've got it, and if you are just in the market for your first pack, this will do everything you need it to do and then some. Save your money and get the best right off the bat! Don't try a gazillion of brands like I did, then finally find UD....
Just get it already and go run! Jamie G. on Jul 6th 2016
This vest is surprisingly nice to run with. I've had it for a few months and have run over 100 miles so far. It hardly moves on your back at all thanks to the dual straps in front and the adjustable shoulder straps. It's easy to drink from the squeeze bottles on the shoulder straps as you are moving and so far they have held up to my less than delicate handling despite looking like they would easily tear or come apart. I have also used the pack with a 2 liter bladder and so long as you remove all the air from the bladder and tighten down the compression strap on the back of the pack, it stays secure and does not jostle too much. I have run with Camelbak packs with bladders that were designed for running but they swung around a lot more than the Ultra Vesta.
The front Velcro pocket is large enough to perfectly and securely fit my Samsung Galaxy 4 phone. I use the zippered front pocket for snacks and car keys. I use the main compartment on the back for the bladder and a warm layer and the open back compartment for the UD rain jacket. I haven't really found a use for the two small zippered pockets on the back though one does have a hook for securing keys which is nice.
One minor design annoyance is the toggle on the cinch strap for tightening around the squeeze bottle on the shoulder straps is on the inside of the strap so it pokes you in the chin unless you tuck it in with the bottle. If they had put the toggle on the outside of the strap then this would not have happened. Similarly, the whistle bounces up and down and bumps your chin unless you tuck it into a small fabric slot designed to hold it but from which it can easily pop out. I may just cut if off and put it in one of the back pockets.
I am 5'6" with a 36" bra size and cup size B/C. I debated between the small/medium and medium/large sizes but ended up with the larger. If you are between sizes and don't anticipate carrying much in the back of the pack then go smaller. If you anticipate carrying a jacket or a bladder in the back then go larger because the bulk in the back acts to make the pack fit more snugly (which has worked perfectly for me as I always carry at least a rain jacket).
Overall, I highly recommend this vest, as do a number of other ladies in my trail running group.
Amy P on Jun 10th 2016