Momentum Race Vest (New UltraViolet Colorway)

Rated 5.00 out of 5 based on 14 customer ratings
(14 customer reviews)


A super stripped down versatile race vest with the capacity to hold all your essentials. The Momentum race pack comes with hydration pockets in the back, mesh storage pocket for your race apparel or rain gear, and plenty of easy access pockets in the front for cell phones, nutrition, F250 flask, and any of the other items you need to grab quickly on the go.




Recommended Use:
Very lightweight race vest for the minimalist runner who prefers bottles in the back. With multiple stretchy mesh pockets available it is perfect to keep the gear organized and accessible.

• Sweat Proof Webbing—won’t absorb water or get saturated and heavy.
• Safety stitched bar tack on all stress points.
• Quiet, bounce free, easy to see and use, zipper pulls.
• Zig zagged stitching over elastic for ultra-durability, increased stretch and rebound.
• Plush feeling micro-fiber polyester edges, soft and non-abrasive against skin and clothing.
• Magnon pocket for sweat-free pills, with automatic magnetic closure for rapid access to pills and other essentials. Patent pending.
• Silicone and PU coated feather-weight nylon fabrics resist water, abrasion and tears.
• Lightweight, soft, breathable, but strong, large-holed mesh pulls moisture away from the body to keep skin dry and cool.

Fit:  Unisex
Size(s):  SM (31”-36”) MD (34”-39”) LG (37”-42”)
Color:  Pitch Black
Hydration Compatible (not included):  4 x UltraFlask 550
Weight: 7.2 oz (204 g)

Additional information

Weight 0.45 lbs
Dimensions 14 × 10 × 3 in

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Fluid Capacity

4 x 550 mL UltraFlask (Sold Separately)

Total Volume

300 c.i. (5 L)



Product Weight (lbs)

14 reviews for Momentum Race Vest (New UltraViolet Colorway)

  1. Rated 5 out of 5


    Love this vest. My go to for 2018. Comfortable and functional with everything I need in a pack . Perfect fot short to longer distance trail races. I love the material and it’s machine washable.

  2. Rated 5 out of 5


    I’ve trained in the Spry for years and this is a perfect step up in storage. I can bring anything I need in a very light weight comfortable package.

  3. Rated 5 out of 5

    Joel Hatch

    For the summer of 2018 I wanted the “Magic Unicorn” of hydration packs. I wanted a pack that could be descrete in training but also expand to carry all the essentials in a longer race. The Momentum Race Vest is that “Magic Unicorn”.

    The sleek and compact design of the Momentum Race Vest is perfect for longer training runs where you’ll want to carry a large phone, soft flasks, and possibly a quesadilla incase you get really hunger mid run. Yep, you can load the vest up with all that “essential gear” and the vest will not have an ounce of bounce.

    The pack really shines when you are pushing the miles and the pace. I used it during the Twisted Fork 64km trail race in June. With just 3 drop bag aid stations for the race, I loaded the pack with two 500ml soft flasks in the front pockets, a 550ml UltraFlask in the rear pockets, and loads of gels. I love that I can access both my flasks and nutrition from the front of the pack! The Max02 Sternum straps keep the vest bounce free and did not restrict my breathing during those nasty climbs in the second half of the race.

  4. Rated 5 out of 5


    Hard to pick a favorite but I think it’s the Momentum. Up to now, I have loved, loved, loved my Alpha Pack- and still do. But the Momentum has some added features while retaining some of the best of Alpha. Plus, it feels smaller on my frame- which is a good thing!

    The vest is a true vest; no side straps to wrangle with. The fabric is light and breezy mesh. The two rear pockets hold bottles (or anything else you want). Today a 550 flask rode back there. No bounce at all and very comfortable. Later on in the run, I put one of the flasks in the front and left one in the back. My phone was in the other front pocket. Still felt very balanced. I was impressed.

    I have previously used the softflasks with straws in the front. Equally terrific ride.

    There are also two stretchy snack pockets on the side. Just the right size for gels, bars, baggies of food etc. THe back zip pocket keeps whatever is in there secure and safe, and the straps for poles could also be used to stack a jacket.

  5. Rated 5 out of 5

    Larry A. McFarland (verified owner)

    This an exceptionally well-designed vest. Not only does it come with the functionality that you except from UltrAspire products but the fit is perfect – even heavily loaded it rides very lightweight. No straps to tug, tuck or manage. The interchangeability of use between the rear holsters and front main pockets gives you many, many loading options.

    The only drawback (and it isn’t really one as this is a lightweight model after all) is that you cannot carry a bladder if you wanted to .

    A superior product overall!!

  6. Rated 5 out of 5


    Perfect vest. This is the first race vest I’ve ever used, but I can’t find any reason to try another one. The vest is light and comfortable and everything is easily accessible on the go. FIts everything I need for longer runs without being cumbersome.

  7. Rated 5 out of 5

    Nolan Blanco

    The Momentum vest is an incredible offering from UltrAspire. It is a piece of gear that is hard to leave at home when going for any length run. It can be a minimalist vest with plenty of options to store your phone, a soft flask, Ultraflask or Human 20 bottle and nutrition. And if you are a packrat, there are four huge pockets, two in the front and two in the back, that you can pack it down with enough water and food to be self sufficient on those longer days when training for an ultramarathon. With two Human 20 2.0 bottles in the back and food in the front, I get ZERO bounce! And it still has room for a light weight shell for those “just in case” moments. If you need versatility… the Momentum is a great choice!!

  8. Rated 5 out of 5

    Barry Tonkin

    This vest is the business. From the first second I tried it on you could just feel the thought that went into creating it.

    The minimalism of the vest is incredible considering how much you can fit into it, and how versatile it can be.

    Zero bottle bounce and the tight fit with out feeling constricting make it a dream to run in.

    From training runs to ultras this vest just ticks all the boxes.

  9. Rated 5 out of 5

    Alexander Humenetskyj

    This vest is perfect for race day. My Momentum holds all I need and then some (be sure to watch the video to see just how much you can carry). It’s a race day must have. I also like that it has 4 bottle holders– perfect for 20 mile long runs. Pleasantly surprised with its durability, fit, and comfort. Hugs you in all the right places. Zero bounce. Well done, UltrAspire!

  10. Rated 5 out of 5


    I got this vest thinking I would only use it as a lightweight/hot weather vest with soft bottles up front but was pleasantly surprised to discover how versatile this vest is. The hex mesh is comfortable, stays dry and conforms really well to my body. I didn’t plan on using the rear bottle pockets but have found that they ride really nicely, are easy to access and feel much more balanced near my center of gravity than soft bottles up front do on technical terrain. For really long self-supported efforts I will use all four bottle options and can go 20-30 miles with ample water and fuel. The minimal footprint keeps you cool on hot days, the black looks great and you can load up the pack with a hat, glove and layers for colder runs. This has quickly become my go-to pack for racing and training. Get one!

  11. Rated 5 out of 5


    I love this vest! It is very comfortable, no bounce and versatile. I can go more minimalist for shorter adventures or carry 4 bottles for longer ones. I have the violet and love the color. You can’t go wrong with this vest!

  12. Rated 5 out of 5


    Great vest! It has so little bounce that you can weigh it down with everything you need for a long effort or strip it down for whatever you need on a shorter run. The mesh is light and breathable. I love having four bottles, as opposed to a bladder because I can keep track of my fluid intake and carry both water and tailwind.

    My only, very small suggestion is that UltrAspire put rubber around the ends of the elastic pulls where you keep your trekking poles. Sometimes they clink on poles, which can range from distracting to annoying depending on how long you’ve been running. Other than that, it’s the best.

  13. Rated 5 out of 5


    Loving this vest to switch from hydration bladder to bottles. I use a soft bottle in the front and 2 of the Ultraflask 550 bottles in the back. Perfect for quick refilling and gauging hydration during an ultra. I put my phone in the other front pocket, store a jacket and light in back pocket, and nutrition in the side pockets. With all of that loaded up it’s still comfortable and lightweight.

  14. Rated 5 out of 5

    andrealowrey (verified owner)

    My favorite vest! Perfect for short and long runs. Very light weight with lots of storage. No bounce or movement. No rubbing issues. My favorite part is all the pocket options. I live in Alaska so the front pocket is perfect size for my bear spray. So versatile!! Highly recommend.

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