Brand: On
Category: Trail Running Shoes
Recommended by Grant Colligan, Pro Mountain Runner — Colorado, USA
Highlights: carbon plate, lightweight, durable
The Cloudultra Pro is engineered for ultra-distance racing, providing unmatched comfort and support across diverse terrains. With advanced cushioning technology and responsive materials, it empowers athletes to push their limits while maintaining stability and speed. 1. CloudTec® cushioning system designed to absorb impact and enhance stability on uneven surfaces. 2. Helion™ HF hyper foam for superior responsiveness, ensuring a quick and agile running experience. 3. Lightweight construction that minimizes fatigue, allowing for longer distances without compromising performance. 4. Breathable upper mesh for optimal ventilation, keeping feet cool and dry during intense activities. 5. Durable outsole with multi-directional traction for reliable grip on various terrains, from trails to roads. 6. Reinforced toe cap for added protection against rocks and debris, enhancing durability during rugged runs. 7. Reflective elements for increased visibility in low-light conditions, ensuring safety during early morning or evening runs. The Cloudultra Pro is ideal for serious runners tackling ultra-distance events, particularly in challenging environments such as trails, mountains, and mixed terrains. It excels in conditions where stability and responsiveness are crucial, making it suitable for both seasoned athletes and ambitious beginners. Whether training for a marathon or exploring new trails, this shoe is designed to enhance performance and comfort throughout the journey, regardless of the season.
Price: $260
- Who it's for
- Trail runners racing or running fast on courses with a mix of runnable and technical terrain, from 50Ks to 100-mile efforts. Best suited to those prioritizing speed and energy return over burly protection.
- What people are saying
- Hosts overwhelmingly praise the light, responsive, plated ride and the nylon plate's forefoot rock protection without added stiffness. One dissenting note flags the price as hard to justify and questions whether the upper holds up on truly rugged terrain.
- Worth noting
- May run narrow at the pinky toe. Upper protection on very rugged terrain is a noted caveat; drains well, which suggests wet-course utility.
Grant Colligan's review
Great plated race shoe for when the race demands a fast pace.
Recommended by Grant Colligan, Pro Mountain Runner
Frequently asked questions
Who is the Cloudultra Pro for?
Trail runners racing or running fast on courses with a mix of runnable and technical terrain, from 50Ks to 100-mile efforts. Best suited to those prioritizing speed and energy return over burly protection.
What do experts say about the Cloudultra Pro?
Hosts overwhelmingly praise the light, responsive, plated ride and the nylon plate's forefoot rock protection without added stiffness. One dissenting note flags the price as hard to justify and questions whether the upper holds up on truly rugged terrain.
What should you know before buying the Cloudultra Pro?
May run narrow at the pinky toe. Upper protection on very rugged terrain is a noted caveat; drains well, which suggests wet-course utility.
What does Grant Colligan say about the Cloudultra Pro?
Great plated race shoe for when the race demands a fast pace.
Why does Grant Colligan recommend On?
Grant Colligan recommends the On Cloudultra Pro for trail running shoes. Great plated race shoe for when the race demands a fast pace.
Is the Cloudultra Pro a good trail running shoe?
Yes — Grant Colligan recommends the Cloudultra Pro by On as their trail running shoes pick. Great plated race shoe for when the race demands a fast pace.
More from Grant Colligan's Mammoth Dragon Back Ascent
View Grant Colligan's expert gear recommendations on Rendezvu
What other hosts are saying
12 experts recommend the On Cloudultra Pro.
Alyssa Clark, Mountain Adventurer with An Ultra Running Problem
This is my favorite trail shoe ever! It is has a nylon plate that provides propulsion without the pain. It is light, responsive and works on every terrain.
Recommended in Broken Arrow Triple Crown
John Bruno, Ultra trail-runner, ski mountaineer
Race day shoe for folks who plan on ~running~ Light, efficient, drains well.
Recommended in Trail running
Stoked on these, great energy return, plush but propulsive, stable but aggressive.
Recommended in Broken Arrow 46k
Shelby Farrell, Athlete. Marketing Professional. Cat Mom.
Probably not worth the price tag. Super light and responsive. It might run a little narrow around the pinky toe, but overall it feels quick underfoot. The landing is soft while still giving some ground feel, and you can feel a bit of propulsion as you toe off. I like the updated braided laces, but worry the upper might not offer enough protection for really rugged terrain.
Recommended in Current Shoe Rotation
Jeffrey Hammond, Foot Doc, ultrarunner, cool dad.
The Cloudultra Pro has become one of my favorite shoes for technical, rocky terrain. I love the nylon plate in this shoe—it does an incredible job protecting the forefoot from sharp rocks and constant trail abuse. When you're out on those "rocks of death" trails where every step makes you question your life choices and fear the pain coming through your shoes, the Cloudultra Pro gives you the confidence to keep moving. The protection is outstanding without making the shoe feel overly stiff, making it a great option for long days in rough terrain.
Recommended in Trail Shoes
Sam Lewis, On Professional Trail and Mountain Runner
My favorite trail shoes I have ever put on my feet!!
Recommended in Broken Arrow
Perhaps trail runnin's most accessible super shoe?
Recommended in Top Trail Running Shoe Picks
For fast, runnable, trail 50Ks!
Recommended in 10 Products I Actually Use
Matt Parker, Dr. Matthew Parker, PT, DPT
Been putting this shoe in the rotation for the last couple weeks and absolutely love it. Ran the Pikes Peak Ascent recently in it as well as just some flatter trail miles. Handles well in technical areas without compromising speed in flat sections.
Recommended in Shoe Rotation
Best shoe in the game. I wear these for every trail race. They are so versatile, have high energy return, and keep me coming back. Just got my third pair in the mail this week and ready to rip them around Mammoth on Saturday!
Recommended in Mammoth Trailfest 50K - Gear List
My all time favorite shoes for when I want to feel SPEEDY. Put them on at mile 70, pure comfort and bounce when I needed it the most.
Recommended in High Lonesome 100 Gear
