Topo Athletic Ultrafly 6 Review: You’ll Fly Too

Introduction to the Topo Athletic Ultrafly 6

ALLISON: I’ve tried my fair share of Topo Athletic trail shoes at this point, so when the Ultrafly 6 showed up, I was genuinely curious how that familiar DNA would translate to the road. Trail shoes from the brand have consistently delivered that roomy toe box and natural feel, but road stability is a different animal entirely. The Ultrafly sits squarely in that category, and stability shoes always add a layer of complexity to ride and responsiveness. Too much guidance can feel clunky, too little, and the purpose gets lost.

So I went in intrigued but cautious. Would this be a structured daily trainer that feels rigid and overcorrected, or something more refined and performance-oriented? With expectations shaped by previous Topo experiences, I laced up excited to see how the Ultrafly 6 would handle everything from easy miles to steady efforts and whether it could strike the balance between support and snap.

AUSTIN: On the heels of the fantastic Altra Experience Flow 3, I received the Topo Ultrafly 6. After the disappointing Topo Aura last February, I kept my expectations in check and, like Allison, cautiously approached the Ultrafly as the miles accumulated.

As someone who rarely runs in shoes with added stability, I wondered if the medial post would feel overly clunky or provide quiet, minimal guidance that didn’t disrupt the gait cycle. Fortunately, I experienced the latter on my way to 50 impressive miles. If you would like a quick refresher before continuing, check out Kaleb’s colorful review of the Nickelodeon Blimp (Ultrafly 5).

What we like about the Topo Athletic Ultrafly 6

ALLISON: The Topo Ultrafly 6 immediately impressed on a few fronts. First and foremost, it’s lightweight without feeling cheap or fragile. It lands with enough substance to give confidence on longer runs, yet it stays quick and eager underfoot. For someone who appreciates a road shoe that feels alert and responsive — but doesn’t compromise on comfort — Topo nailed it here.

Speaking of comfort, the wide toe box deserves serious praise. In an era when many performance shoes feel cramped up front, the Ultrafly 6 gives your toes room to do what they naturally do. That spacious forefoot lets your foot splay and push without restriction, and it’s particularly noticeable during longer efforts when foot swelling can become a real factor. That open feel is one of the reasons the shoe feels so easy to live in day after day.

But the surprise bonus here is how snappy and stable the Ultrafly 6 feels. There’s enough rebound in the midsole that tempo runs feel lively, and transitions aren’t mushy or vague. For a price point around $150, finding a shoe with this combination of responsiveness, comfort, and everyday use is rare these days. Stability feels thoughtful without being heavy, and the ride encourages forward momentum rather than bogging you down.

From daily miles to brisk efforts, the Ultrafly 6 lands in that sweet spot between performance and comfort that many shoes in this price bracket miss. If you want a road trainer that can handle higher tempos without feeling dead underfoot, this one deserves a hard look.

AUSTIN: Step in comfort shines. The roomy toe box provided ample toe splay, and I quickly secured the midfoot despite the lack of gussets. I also liked the inclusion of an Ortholite insole. The arch is on the higher side, but as someone with high arches, I enjoyed the lift. The tongue and heel provide some modest padding to enhance the fit and interior comfort.

Up next, we can’t forget that overall, PumaGrip is arguably the benchmark for outsole traction and durability. Still, I’m impressed with the Ultrafly 6 rubber outsole. At 50 miles, I see zero wear. And I try to run like a ninja. The ZipFoam midsole is responsive, dare I say snappy, but doesn’t feel harsh by any stretch. I attribute this to the additional 2 millimeters of cushioning and redesigned medial post.

Although spring draws near, cold winter winds are hanging around in the Georgia suburbs. Said winds easily flow through the engineered mesh upper. In summary, I enjoyed every outing in the Ultrafly 6.

What we don’t like about the Topo Athletic Ultrafly 6

ALLISON: No review is complete without a few honest critiques, and the Ultrafly 6 had a couple for me. First, the colorway I tested… wasn’t my favorite. That’s subjective, of course, but given how much people already struggle to match running shoes with everyday gear, this one leaned hard into hues that didn’t play nicely with much in my closet. A small gripe in the grand scheme, but one that still matters for those who care about how their shoes look as much as how they perform.

More importantly, the fit around the arch and midfoot caused minor irritation on longer runs. On a couple of outings past the two-hour mark, I began to notice a subtle rubbing sensation around the arch region, particularly where the upper meets the midsole. It never escalated to pain or hot spots, but enough to make me shift my foot placement mid-stride more than once. For runners with a more pronounced arch, it’s something worth testing indoors first.

Overall, the shoe’s comfort and performance are both good, but these small fit and feel issues kept it from being a complete slam dunk for me across all run types.

AUSTIN: Like Allison, I’ll knock the Ultrafly 6 for the boring gray-and-navy colorway I received. The navy and lime pairing is a modest improvement, but I’d like to see Topo swing for the fences in the design department. Otherwise, I have no complaints about pain or blisters.

Final thoughts on the Topo Athletic Ultrafly 6

ALLISON: The Topo Ultrafly 6 is a compelling mix of performance and everyday usability. It’s lightweight with a springy, responsive ride that belies its price point, and the wide toe box makes long miles feel surprisingly natural. For runners who want stability without sacrificing comfort, it’s one of the more interesting shoes in the sub-$150 category right now. That said, the firmer feel and minor arch irritation may turn off those who prioritize softness or have sensitive midsoles. Still, for daily runs with added support, the Ultrafly 6 earns a strong recommendation with room to grow.

AUSTIN: I’m still surprised I racked up 50 miles in the Ultrafly 6 before writing this review, but I really enjoyed this model. The anatomical toebox, snappy midsole, unobtrusive stability, and grippy outsole validate the $150 price from a value standpoint.

From easy efforts to uptempo bursts, the Ultrafly 6 instantly responded to the change of pace. Transitions are smooth, and I felt fast. If you like the Hoka Arahi, Asics GT-2000, New Balance 860, or Saucony Guide, consider adding the Ultrafly 6 into your rotation. This one won’t disappoint.

You can pick up the Topo Athletic Ultrafly 6 for $150 from Running Warehouse (featuring free shipping and 90-day returns) by using the buttons below.