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Topo Athletic Ultrafly 6

In production · road · Daily / Long run · $150

Lightly supportive daily trainer with a heel-wrapping medial post.

Built for daily, long run, at a target pace of 8:30–11:00 /mi on road.

The spec sheet

Weight
272 g / 9.6 oz
Heel stack
32 mm
Drop
5 mm
Plate
—
Cushioning
4 / 5
Energy return
3 / 5
Responsiveness
2 / 5
Rocker
2 / 5
Flexibility
3 / 5
Stability
4 / 5 (5 = most guidance)
Toe-box
Very wide
Sizing
True to size
Durability
~450 mi
Price
$150

How it rides

The foam

Topo Athletic tuned this midsole soft (4/5 on our cushioning scale). Energy return is moderate — comfortable and predictable rather than bouncy. 32 mm of heel stack is the modern daily-trainer sweet spot — enough foam for long miles without losing contact with the road. Combined, the ride reads as calm at 2/5 responsiveness.

The plate

There is no plate here. The midsole does all the work, so the shoe flexes naturally and stays versatile across paces — easier on the feet day to day, but without the snap of a plated shoe when you want to roll.

The geometry

A low 5 mm drop encourages a midfoot landing and keeps the ankle working through a fuller range. The geometry is fairly traditional and flat, so the shoe follows your foot rather than steering it. Forefoot flex is middle of the road. It offers real guidance through the gait cycle — useful for runners whose form collapses when tired.

Fit, sizing & life

The toe-box is unusually roomy — foot-shaped rather than tapered, which suits splayed or bunion-prone feet. It fits true to size. Expect roughly 450 miles from the outsole, about $0.33 per mile at $150.

For the foams and plates Topo Athletic uses across its line, read the Topo Athletic brand guide.

How it compares

Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.

Weight

272 g / 9.6 oz

3 g lighter than the catalog median of 275 g

Heel stack

32 mm

4 mm lower than the catalog median of 36 mm

Drop

5 mm

1 mm lower than the catalog median of 6 mm

Price

$150

10 cheaper than the catalog median of 160

Responsiveness

2 / 5

Catalog median 3 / 5

Cushioning

4 / 5

Catalog median 4 / 5

Energy return

3 / 5

Catalog median 3 / 5

Durability

~450 mi

Catalog median ~400 mi

Within the Topo Athletic line it is lighter than the brand's median (275 g / 9.7 oz) and sits taller than its median stack (32 mm).

Closest alternatives

Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.

Skechers GO Run Now

265 g / 9.3 oz · 30 mm · 6 mm drop · — · $70

Soft-riding value trainer for easy days and walk-run miles.

Altra Experience Form

272 g / 9.6 oz · 30 mm · 4 mm drop · — · $150

Low-drop stability daily — Altra's on-ramp from traditional shoes.

Adidas Adistar 4

272 g / 9.6 oz · 40 mm · 5 mm drop · — · $140

Adidas Adistar 4: 40 mm heel stack, 5 mm drop, 275 g — specs from independent lab testing.

Saucony Guide 18(2025)

272 g / 9.6 oz · 35 mm · 6 mm drop · — · $145

Center-path stability with a soft, non-intrusive frame.

Hoka Arahi 7(2023)

272 g / 9.6 oz · 34 mm · 5 mm drop · — · $145

J-Frame support built into soft foam — stability that doesn't feel like a brace.

Lineage & siblings

Other current Topo Athletic models