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Product Overview

Ultrafly 2 is a cushioned road running shoe featuring a 3-density midsole for light guidance through the gait cycle. At 28mm stack height in the heel and 23mm forefoot, the Ultrafly 2 has a 5mm drop. The new mesh upper is strong yet breathable and the all-new Ortholite footbed provides additional comfort by resisting compression and naturally eliminating odor-causing bacteria.


  • Best For:Road Running
  • Stack Height:28mm (heel) // 23mm (forefoot)
  • Heel to Toe Drop: 5MM
  • Weight:10.0 oz (M9)
  • Cushion:
  • Support:
  • Pliability:

Why We Love It

  • Roomy Toe BoxRoomy Toe Box

    Roomy Toe Box

    Anatomical toe box allows toes to spread naturally and comfortably.

  • Multi-Density MidsoleMulti-Density Midsole

    Multi-Density Midsole

    Allows you to access two levels of cushioning: soft against the foot and firmer/more responsive against the ground.

  • Lightweight Breathable MaterialsLightweight Breathable Materials

    Lightweight Breathable Materials

    For a '2nd Skin' fit and feel.

  • 5MM Drop5MM Drop

    5MM Drop

    Our highest available drop allows you to access natural running with more under-heel cushioning.

Ratings & Reviews

Ratings Snapshot

Average Customer Ratings


The new and improved Ultrafly 2 - v2 building on an excellent v1 shoe


It seems to be identical to the original Ultrafly but for the new and improved upper material. I had the upper on the original wear through around 100 miles; time will tell on the Ultrafly 2, but it is a flexible nylon mesh type material similar to other shoes that hold up for hundreds of miles. The new mesh gives a little bit more "hug" from the upper on your foot, but I think that's also a positive since I thought there was a little too much slippage in the original Ultrafly (overall which I thought was an excellent shoe but for the wear). Good to see Topo improving where things are needed but leaving an excellent design in place (midsole and outsole seem identical to me).

Better upper, but midfoot and heel lock isn't as snug


The Ultrafly v1 has been my go-to road shoe for the last two years. The cushioning and the snug midfoot and heel fit was just right. The only complaints I had were the boxy toebox and the upper material started to tear after about 200k.

v2 has a better upper with softer material that conforms to the feet better and looks less likely to tear like the v1 did. Cushioning felt exactly the same as I think Topo didn't change the mid and outsole from v2. Why change something that's near perfection, right? However, I just felt that the midfoot and heel lock wasn't as snug. Maybe that's due to the softer upper and also the guille lacing system as also been changed to a more conventional lacing system. Still a very good shoe and more miles will tell how good this version is.

Why did you mess with them?!


I find #2 to be heavier and bulkier that the first version. The toe box feels deeper and a little wider, which gives a slappy feel. I suppose the upper is a little better, but my only gripe about the first version was that it seemed to collect an excessive amount of sweat and moisture, this version doesn't do any better in that department. Also, the heel fit is not nearly as snug and secure on these. Bottomline, get the first version if you can find them.

What a comfy and versatile shoe!


I am a Topo Athlete Ambassador so get the opportunity to try many different models but I wouldn't call out anything I didn't love. The older Ultrafly and now this new Ultrafly 2 is my go-to road shoe for day-to-day training. On a hunch, I tried it out on a longer trail run and I was pleasantly surprised by how comfortable it was. The extra cushion of the midsole seems to make up for the lack of a rock plate. Next I tried the Ultrafly 2 in a 50-mile race, a 75-mile adventure run, and recently a 100-mile race. It was great! The sole does not have the lugs of the MT-2 or the Terraventure but if traction won't be an issue on the course, this shoe will stand up to the distance. With the Topo fit (wide forefoot but narrower midfoot and heel) I get all the control I need on trails. I have found my new ultra trail running shoe.