Ultraspire – Inspired Products for Ultra Athletes

Pack Enough Gear to Get You Through

4.83 out of 5 based on 6 customer ratings
(6 customer reviews)


4.83 out of 5

This pack began as a custom pack for Elite Immortal Krissy Moehl’s return trip to the UTMB at Mont Blanc to defend her record and first place finish.

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SKU: UA051. Category: . Tags: , , , , , .

Product Description

The Omega pack began as a custom pack for Elite Immortal Krissy Moehl’s return trip to the UTMB at Mont Blanc to defend her record and first place finish. But, many of our immortals saw prototypes of this pack and wanted it too! We thought there must be more runners out there who would feel the same way about this incredibly light weight and surprisingly accommodating, pack. Though a challenge to create a pack that was both light enough to wear for a hundred plus mile race, and large enough to stow all the necessary equipment, this paradox has found itself a home in the Omega. The Omega is a larger version of the Surge pack.

  • Feather weight, large capacity pack.
  • Top zippered pocket for head lamp, cell phone or other supplies.
  • Quick stash right pocket is large enough to hold a spare bottle, food, cell phone or other essentials and uniformly compresses with cord.
  • UTMB-ready: Some races require a “kit” of supplies required to be carried during the race.
  • Left mesh pocket over zippered inner pocket for energy foods, trash or other gear.
  • Pockets and shock cord loops for trekking pole attachment.
  • Unimpeded rapid access to a separate compartment UA 2 L reservoir with signature push/pull Infusion Valve that delivers a high flow of water and quick fill during races.
  • Dual side compression with Compressi-flex™ for stable load without restricting movement.
  • Large hole breathable microfiber mesh for light and airy feel.
  • Lined patent pending Magnon Electrolyte Pocket™ with easy worry-free magnet closure to store your electrolyte and salt tablets.
  • UA signature light weight, noise free zippers pulls easily grabbed even with gloves, cold or numb fingers.
  • Secure dual Speed Hooks with limited stretch elastic for breathability without restriction. Ease getting in and out of pack when hands are cold, wet or trying to undo pack in the dark.
  • Minimal stretch elastic Sternum Strap for a comfortable adjustable fit.
  • Adjustable Sweat Proof side webbing attachments for comfortable fit without the absorption of sweat and salt to weigh your pack down.
  • Light weight 30D fabric for a weightless feel.
  • Reflective details on front and back for nighttime and early morning visibility.
  • Left mesh pocket over zippered inner pocket for energy foods, trash or other gear.
  • Elastic attachment on each shoulder strap to attach a whistle, attach your glasses or carry an UltrAspire race cup.

Additional Information


Luminous Blue, Pitch Black, Steep Green


Clothes Stash, Credit Cards, Gels and Foods, Hydration Ready, Keys, Phone or Personal Device, Pills and Electrolytes

Fluid Capacity

2 L (70 fl. oz) Reservoir

Weight (includes Reservoir)

16.23 oz

Total Volume

783.19 c.i.

Product Dimension (inches) LxWxH


6 reviews for Omega

  1. 5 out of 5

    (verified owner):

    The Omega has the versatility to carry several layers, lots of calories & water. Perfect for those days when the weather could quickly change.The adjustable straps ensure a smooth ride as the contents of the Omega throughout the run may change.

  2. 5 out of 5


    This is a great pack for those adventures requiring you to carry more than just your fluid and calories. I have used this vest on a few overnight runs in which I needed to carry extra clothes as well as extra fluid, calories. Plenty of pocket space at the front for on and off again packing of a Houdini, as well as an easy access pocket on the back perfect for this as well. The extra storage space for a handheld bottle is nice for the extra fluid and allows you to either carry it or take a break and tuck it in a sleeve. As a 5’1″ 100lb female I find the vest surprising comfortable with how well I can secure it to my frame and it’s lightweight design keeps it from feeling overly bulky.

  3. 5 out of 5


    I’ve tried many hydration packs over the years but the Omega is my all-time favorite. I’ve used it in more than a dozen 100 mile races and it has just the right amount of space to hold the fluids and gear I need. I use the front pockets for things that I access often such as a camera, salt caps, and sunscreen. The pouch in the back is large enough to hold food, gloves, and a light jacket. I can’t recommend this pack highly enough.

  4. 5 out of 5


    Love the Omega! I ran the Zion Traverse and the Bryce 100 with this pack. Very comfortable and quite versatile. Held all my extra gear easily. I love the little side pockets for my small flasks. Very light and compresses nicely when I don’t need as much gear. I’ll be using this pack during my training for the Bigfoot 200 while I’m fast packing, and more than likely I’ll have it on when I cross the finish line as well. Assuming I don’t get abducted by Sasquatch!

  5. 5 out of 5


    I got this pack April 2014. I didn’t start using it until the Fall. The idea of running with a pack on was completely new to me. It took me about 3 runs to get used to it. Now I know that I can go out for a 30 mile run and with my 2L reservoir and 3 bottles on board I am completely self sufficient. There is plenty of extra space for food, clothes, first aid supplies, etc. I love this pack and have told all my friends about it. I have completed 3 ultras with it and as I pass the aid stations without stopping the volunteers cheer that I have everything I need with me. I recommend it for everyone.

  6. 4 out of 5


    This pack is awesome! its the perfect size! I can hold enough water for my Great Dane and I on our trail runs. I pack my climbing shoes in there when i want to do a mix of bouldering and trail running. I am bigger guy (47 in. chest) and it fits perfect, my wife will use it, adjustments are easy to fit her smaller frame. I cant even feel it when i am running. i am glad i bought this vest!

    Con: The Infusion Valve for the hydration system is really bad. if you take a drink and don’t close the valve in your mouth the water just runs back into the pouch. it takes longer to get a drink because you are consistently trying to suck it through the hose.
    I just went to the local gear shop and bought a bite valve and replaced it. Problem Solved!

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