Synaptic Hydration Belt

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)


The Synaptic Hydration Belt has a conical shape combined with front and back carrying capacity for a balanced load and a comfortable fit. This water belt is so balanced it won Ultra Running Magazine Top Pick for stability. Store a hat, beanie, gloves, jacket, or even trekking poles with 2 shock cords on the front pouch. The Synaptic hydration pocket is also interchangeable with the Lumen 600 2.0 light belt to suit custom hydration and lighting needs.

UltraRunning Magazine Top Pick!



Recommended Use:
Racing and training; 1 hour between refueling stops.


• Dual-sided adjustment for good sizing range with single speed hook access for taking waist belt on and off.
• Center front pocket is large enough for cell phone or energy foods with tuck away jacket straps perfect for extra clothing or Z-poles.
• Angled minimalist bottle holster for easy right handed access. Bottle rides close to the body for a comfortable stable ride.
• Synaptic is an MBS™ belt.  Back is compatible and interchangeable with a Lumen 600 front for a hydration and illumination combo.
• Small flat zippered pocket next to holster to secure keys or other essential items.

Fit: Unisex
Size: Universal
Color options: Luminous Blue or UltraRed
Hydration (included):  1 x UltraFlask 550
Capacity: 50 c.i.; .85 L

Additional information

Weight N/A
Dimensions N/A

Waist Belt



Fluid Capacity

550mL UltraFlask bottle

Product Weight (lbs)

Total Volume

34.2 c.i. (.56 L)


2 reviews for Synaptic Hydration Belt

  1. Rated 5 out of 5


    I take this belt with me everywhere. Whether it’s a short walk or longer run. It holds just the right amount of water. I love that the bottle is so soft that I can suck out the air half way through and squish it down to reduce sloshing. I put my keys in the back zippered compartment. In the front, I like to carry my cards/ID (there’s two inner pockets for this). I always listen to my music and the front pocket fits my phone perfectly. I usually start my run out with a light jacket and then take it off and loop it through the shock cords on the front of the pack. Sometimes my jacket is heavier and I still don’t feel a bounce when it’s attached. It’s awesome!

  2. Rated 5 out of 5

    Kevin Zanker

    I absolutely think this is the best hydration belt. I liked my previous belt and did not like any of the alternatives until I found this one. No issues filling up a regular water bottle and having stability. I wear the belt for all my long training runs and races from 10K to marathon.

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