ShoeGeometry

Inov-8 Trailfly Pro vs La Sportiva Prodigio Pro

Two shoes compared on measured geometry. Each cell carries a provenance badge; open a shoe for sources.

heel boneInov-8 Trailfly Pro: heel 34 mm, forefoot 28 mm (drop 6 mm); toe rocker not measured yet (visible lift over the front 23 % of length), typical shape drawn; heel bevel 9 % of length (height not measured), ending behind the heel bone (only the back edge is rounded).La Sportiva Prodigio Pro: heel 34 mm, forefoot 28 mm (drop 6 mm); toe rocker 39 % of length, radius 51 % of length; heel bevel 18 % of length, 6 mm high at the back, reaching in front of the heel bone (the sole still curves up under it: a heel rocker).La Sportiva Prodigio Pro: toe rocker 39 % of length
  • Inov-8 Trailfly Pro34/28 mm · toe rocker not measured · heel bevel 9 %
  • La Sportiva Prodigio Pro34/28 mm · toe rocker 39 % · heel bevel 18 %
Illustrative profiles, not photographs: drawn from published stack heights and photo estimates of the unloaded shoes on a common length (300 mm), heels aligned, toe to the left; dots mark where each toe rocker starts; the dotted vertical line is under the heel bone (12 % of length), so a heel curve reaching past it is a bevel in front of the heel bone. Dotted lines use typical values where a shoe has no measurement. Exact values are in the table below.

Which suits you

If you wantPickBecause
A smoother roll at toe-offLa Sportiva Prodigio Pro31.2 vs 44.4 mm toe tip
More cushioning under the heelAbout the same34 vs 34 mm heel stack
More under the forefootAbout the same28 vs 28 mm forefoot stack
A lower dropAbout the same6 vs 6 mm drop

From the values below, with differences inside measurement noise shown as about the same. This describes the shoes, not what is right for your feet; comfort in the first few runs decides.

MetricInov-8 Trailfly Pro
Trail · Trail
La Sportiva Prodigio Pro
Trail · Trail
Heel-to-toe drop6 mmStated6 mmStated
Heel stack34 mmStated34 mmStated
Forefoot stack28 mmStated28 mmStated
Weight227 gStated267 gStated
Toe rocker—39 %est.
Rocker radius—51 %est.
Rocker rise angle—28 degest.
Rocker angle at toe—59 degest.
Toe tip over ground31 mm*est.44 mmest.
Visible rocker lift onset77.2 %est.74.6 %est.
Toe spring (relative)—20.9 %est.
Heel bevel length9.3 %est.18.1 %est.
Heel bevel height—6 mm*est.
Midsole width (forefoot)—117.1 mmMeasured
Midsole width (heel)—86.1 mmMeasured
Interior forefoot width—92 mmMeasured
Toebox width—72.4 mmMeasured
Longitudinal stiffness—33Derived
Midsole firmness—56Derived
PlateNo plateRock plate
Primary foamPOWERFLOW Elite (supercritical TPEE)XFlow Speed (supercritical TPU core)
List price$195$225

Key differences

  • Heel-to-toe drop is about the same: 6 mm for Inov-8 Trailfly Pro, 6 mm for La Sportiva Prodigio Pro.
  • Heel stack is about the same: 34 mm for Inov-8 Trailfly Pro, 34 mm for La Sportiva Prodigio Pro.
  • Forefoot stack is about the same: 28 mm for Inov-8 Trailfly Pro, 28 mm for La Sportiva Prodigio Pro.
  • Inov-8 Trailfly Pro's weight is 227 g, 40 g lighter than La Sportiva Prodigio Pro's 267 g.

Read more about both shoes

We measure the shape. For how they feel over many miles, and for lab tests of cushioning, grip and fit:

Inov-8 Trailfly Pro

No review found yet.

La Sportiva Prodigio Pro

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Inov-8 Trailfly Pro details · La Sportiva Prodigio Pro details · Add more shoes