We spent 6.7 hours reading reviews from experts and users. In summary, this is what runners think:

6 reasons to buy

  • One buyer shared that the shoe performed very well during long runs.
  • Several users were satisfied with the fit of the shoe and how it wrapped nicely around the foot.
  • Based on the feedback of many consumers, the cushioning system was able to provide a comfortable ride, either on road or softer pavements.
  • A runner commended the arch support provided by the shoe and how great it felt during up-tempo runs.
  • Many users admired the roomy yet non-exaggeratedly spacious toe box.
  • The shoe’s weight and how it contributed to the overall experience was well-regarded.

1 reasons not to buy

  • The big toe pounded against the front of the shoe and made running uncomfortable, according to a couple of runners.

Bottom line

Presenting a bouncy ride and a commendable flexibility, the Topo Athletic Ultrafly provides enough guidance without forcing the movement of the foot. The shoe is touted to be durable and agreeable for moderate long tempo runs and tough road running. A few users hinted on improvement areas such as the weight and the structure, but it’s considered to be an overall satisfactory running shoe.


Update: Topo Athletic Ultrafly 2
Terrain: Road
Arch support: Neutral
Weight: Men: 9.9oz | Women: 8.5oz
Heel to toe drop: Men: 5mm | Women: 5mm
Pronation: Neutral Pronation
Arch type: High arch
Use: Jogging
Material: Vegan
Strike Pattern: Midfoot strike
Distance: Daily running | Long distance | Marathon
Heel height: Men: 28mm | Women: 28mm
Forefoot height: Men: 23mm | Women: 23mm
Release date: May 2016
Brand: Topo Athletic
Type: Low drop
Width: Men: Normal | Women: Normal, Wide
Price: $120
Colorways: Black, Blue, Orange
Small True to size Large
See more facts


A top rated Road running shoe

Expert Reviews

Experts are runners, who post reviews at youtube, directly at RunRepeat or at their own websites. Each expert is categorized from level 1 to level 5 based on expertise. See stats on expert reviews and how we calculate scores here.

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84 / 100 based on 10 expert reviews

  • 75 / 100 | The Ginger Runner | | Level 5 expert

    These are durable.

  • 94 / 100 | Road Trail Run | | Level 5 expert

    I have enjoyed them for moderate tempo long runs, trail running and with their outstandingly comfortable upper and toe box for every day wear.

  • 86 / 100 | iRunFar | | Level 4 expert

    While technically a road shoe, the Ultrafly has the pedigree to handle all but the most technical trails.

  • 77 / 100 | Gear Institute | | Level 4 expert

    The Topo Athletic Ultrafly is best for runners looking for a low foot drop shoe with anatomic foot shape and significant cushioning for high mileage training.

  • 96 / 100 | Real Runner Reviews | | Level 3 expert

    It is so comfortable and while it has a decent amount of cushion, it still feels light and flexible. I have tested this shoe on long and short runs, easy and fast paced ones as well.

  • 80 / 100 | Ultrarunner Podcast | | Level 3 expert

    Though I’d never consider the UltraFly a “fast” shoe, its build still allows me to do a tempo workout without feeling bogged down.

Become an expert

  • The Topo Athletic Ultrafly is a running shoe that, while having a low profile, is designed to be the most cushioned shoe from the brand. It is intended to provide a natural ride suitable for daily training with its level of cushioning and support.
  • Its rubber outsole runs the length of the shoe for increased durability and traction.
  • With its 3-piece EVA midsole, there is a significant amount of cushioning and guidance throughout the gait cycle.
  • An anatomical toe box is present to promote a more natural toe splay.
  • The lightweight mesh upper with strategically-placed printed overlays and molded heel stays to provide a snug fit without dragging the foot down with unnecessary bulk.

The Ultrafly is a road running shoe that caters to neutral pronators and overpronators. As it delivers a roomy toe box, the shoe is suitable for users with a high-volume foot or those looking for a shoe that allows for a wide toe splay. Despite its cushioning, the shoe fits true to size. The available width profiles are D – Medium for men and B – Medium for women.

A thick carbon rubber makes up the entire length of the outsole of the Ultrafly. Featuring an aggressive, high-abrasion design, it aims to handle rough road excursions with its increased grip and durability. This outsole material is also used in the Ultrafly 2 running shoe.

Because it is a road running shoe, the Ultrafly’s outsole structure does not consist of gripping lugs, but instead it is designed with cutouts to provide traction on either rough or slippery pavement.

The midsole consists of a three-piece EVA with varying firmness: part one is a white portion, which is the main layer; part two is a unit on the medial side that is 12% harder than the white portion; part three is a small portion on the lateral side that is 10% softer than the main foam layer. This multi-density design allows for two levels of cushioning: soft against the foot and firmer against the ground.

While relatively dense, the midsole remains lightweight to allow easy running on uphill roads.

The firm unit on the medial side the of the platform acts as a stabilizing unit that amends overpronation. It evens out the running gait, thus preventing discomfort or discrepancies in the performance.

The upper is made of a lightweight mesh material that is designed to provide the sensation of having a second skin. It also has a breathable nature, so the foot won’t feel any buildup of heat or sweat. There are strategically-placed printed overlays that maintain the strength of the upper unit without adding weight.

With its spacious toe box, breathing room is given to the forefoot. It also allows the toes to spread naturally. It is covered by a rubber toe cap that is made wide and tall enough to prevent abrasions while running.

The heel collar is padded, yet semi-rigid. It wraps around the heel and keeps it securely in place. It is also designed to set the Achilles up for a snug fit.

The tongue is a lightly padded non-bootie construction that provides an adequate protection for the top of the foot.


Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.