ShoeGeometry

Nike Streakfly 2 vs Saucony Endorphin Elite 3

Two popular shoes in the same category, compared on measured geometry. Each cell carries a provenance badge; open a shoe for sources.

heel boneNike Streakfly 2: heel 27 mm, forefoot 23 mm (drop 4 mm); toe rocker 35 % of length, radius 38 % of length; heel bevel 8 % of length, 8 mm high at the back, ending behind the heel bone (only the back edge is rounded).Nike Streakfly 2: toe rocker 35 % of lengthSaucony Endorphin Elite 3: heel 40 mm, forefoot 32 mm (drop 8 mm); toe rocker 31 % of length, radius 33 % of length; heel bevel 12 % of length, 26 mm high at the back, ending about under the heel bone.Saucony Endorphin Elite 3: toe rocker 31 % of length
  • Nike Streakfly 227/23 mm · toe rocker 35 % · heel bevel 8 %
  • Saucony Endorphin Elite 340/32 mm · toe rocker 31 % · heel bevel 12 %
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-offNike Streakfly 234.5 vs 31 % toe rocker
More cushioning under the heelSaucony Endorphin Elite 327 vs 39.5 mm heel stack
More under the forefootSaucony Endorphin Elite 323 vs 31.5 mm forefoot stack
A lower dropNike Streakfly 24 vs 8 mm drop
A stiffer, snappier forefootSaucony Endorphin Elite 30 vs 54 /100 stiffness
A firmer, more stable feelNike Streakfly 244 vs 0 /100 firmness
A wider base under the forefootSaucony Endorphin Elite 3102.2 vs 116.2 mm forefoot base

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.

MetricNike Streakfly 2
Racing · Road
Saucony Endorphin Elite 3
Racing · Road
Heel-to-toe drop4 mmStated8 mmStated
Heel stack27 mmStated39.5 mmStated
Forefoot stack23 mmStated31.5 mmStated
Weight145 gStated207 gStated
Toe rocker35 %est.31 %est.
Rocker radius38 %est.33 %est.
Rocker rise angle30 degest.35 degest.
Rocker angle at toe67 degest.63 degest.
Toe tip over ground43 mm*est.44 mm*est.
Visible rocker lift onset77.2 %est.78 %est.
Toe spring (relative)19.8 %est.21.8 %est.
Heel bevel length8.2 %*est.12.1 %*est.
Heel bevel height8 mm*est.26 mm*est.
Midsole width (forefoot)102.2 mmMeasured116.2 mmMeasured
Midsole width (heel)70.8 mmMeasured94.2 mmMeasured
Toe box shape78 %est.80 %*est.
Interior forefoot width89.7 mmMeasured93.8 mmMeasured
Toebox width66.7 mmMeasured71.8 mmMeasured
Longitudinal stiffness0Derived54Derived
Midsole firmness44Derived0Derived
PlateCarbon plateCarbon plate
Primary foamZoomXIncrediRUN
List price$150$290

Key differences

  • Nike Streakfly 2's heel-to-toe drop is 4 mm, 4 mm lower than Saucony Endorphin Elite 3's 8 mm.
  • Nike Streakfly 2's heel stack is 27 mm, 12.5 mm thinner than Saucony Endorphin Elite 3's 39.5 mm.
  • Nike Streakfly 2's forefoot stack is 23 mm, 8.5 mm thinner than Saucony Endorphin Elite 3's 31.5 mm.
  • Nike Streakfly 2's weight is 145 g, 62 g lighter than Saucony Endorphin Elite 3's 207 g.
  • Nike Streakfly 2's toe rocker is 35 % of length, 4 % of length longer than Saucony Endorphin Elite 3's 31 % of length.

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:

Nike Streakfly 2

Saucony Endorphin Elite 3

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Nike Streakfly 2 details · Saucony Endorphin Elite 3 details · Add more shoes