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On Running
Cloudultra Trail Running Shoe - Women's

3.5 out of 5 stars
6 Reviews

Out of Stock

Don't worry though, we have a lot more Women's Trail Running Shoes in stock than that.

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Why We Like The On Running Cloudultra Trail Running Shoe

The Cloudultra Trail Running Shoe is perfect for our longest trail runs because its supportive design is crafted with racing in mind. Dual foam layers function in combination with the CloudTec sole system to provide the most cushion in On Running’s line, making this shoe ideal for long runs in remote wilderness.


  • Trail runner intended for training and raving off-road
  • Dual-layer mesh upper is highly breathable and abrasion-resistant
  • Swiss-engineered Missiongrip outsole grips wet or uneven surfaces
  • TPU reinforcements in key areas prevent wear from rocks and roots
  • FlexLock speed lace system never self-loosens
  • Partially recycled fabric layup limits environmental impact
  • Runs small, so we recommend sizing up for ideal fit
  • Item #ONFB038
Upper Material
mesh, TPU
FlexLock speed lace
Support Type
Heel / Forefoot Height
31 / 23mm
Claimed Weight
Manufacturer Warranty
1 year

Overall Rating

3.5 based on 6 ratings

Review Summary

1 Stars - 2 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 3 reviews

Fits Small

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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1 out of 5 stars

September 18, 2023


I've used it once or twice and have initial impressions
5' 7"

Did not hold up, shoe lace loop broke within 5 wears, can no longer tighten the shoe.

Kat K
5 out of 5 stars

July 18, 2023

Best Trail Runners

I've put it through the wringer

These are by far my favorite pair of Ons I've owned. Just bought my second pair! I recommend sizing up a half size as they fit a big snug. I have a narrow foot & high arch and these fit like a glove and require 0 break-in time! They're super lightweight but still very sturdy when running on varied terrain. They have a little "switch" on the laces that you can flip to either tighten or loosen as you run & your feet expand without having to retie your shoes.

Jill B
4 out of 5 stars

September 19, 2022

FITS SMALL compared to other ON shoes

Fits about 1 size smaller than several of the other ON shoes I have gotten in the past

Ashley K
Ashleigh MGearhead
5 out of 5 stars

April 18, 2022

Great Trail Runners!

I've used it once or twice and have initial impressions

I tried these and very impressed with quality and comfort. I had to order a half size up, though! For reference, the Cloud X and Cloudflows fit in my normal sneaker size but I found these were a tad short.

5 out of 5 stars

January 16, 2022

Great shoe, holds up well

I've put it through the wringer
Size Bought:
5' 9"

I demo?d these and liked the way they fit so I bought a pair. I?ve never owned a pair of On shoes before so I was really skeptical. I typically run in brooks cascadia but once I made the switch i haven?t turned back. I have put these shoes through some big mountain trail races in Washington and Utah and they have held up great. I also wear them hiking bc they are so comfortable. I am definitely a converter and will be buying more On shoes based on how well these have performed (and I?ve had them for 8 months now)

Colleen B
1 out of 5 stars

January 12, 2022

Worse shoe ever!

Size Bought:

I was so exited to get this shoes for Christmas. I have used them twice and they have already started to tear. Not the quality I was expecting :(

user image
Barbara L