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Tested using Methodology v0.16
Updated Sep 11, 2026 09:00 PM
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Tested using Methodology v0.15
Updated Sep 11, 2026 06:40 PM
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Heel Stack Height
36.9 mm
Weight
220.0 g (7.76 oz)
Heel-To-Toe Drop
6.7 mm
Plate
Plastic Shank
Heel Stack Height
40.2 mm
Weight
242.0 g (8.54 oz)
Heel-To-Toe Drop
7.3 mm
Plate
None
Our Verdict
adidas Adizero Evo SL
Saucony Endorphin Azura
The Saucony Endorphin Azura and adidas Adizero Evo SL are versatile performance trainers that achieve speed differently. The adidas is much lighter and slightly livelier, while the Saucony is more cushioned, more stable, and significantly snappier, with a more rocker-biased ride. Get the adidas if you want a lighter, less assistive shoe; get the Saucony if you prefer more protection and a firmer platform that carries you through the stride.
Variants
- Adizero Evo SL (Carbon/Lucid Red/Solar Slime - (Men - US 9))
- Adizero Evo SL (Cloud White/Core Black/Cloud White - (Men - US 9))
- Endorphin Azura (Black/Aqua - (Women - US 7))
- Endorphin Azura (Black/White - (Men - US 9))
Main Differences for
Half/Full Marathon Racing
Half/Full Marathon Racing
Threshold
Half/Full Marathon Racing
7.6
7.9
Weight
7.5
6.7
Heel Stack Height
36.9 mm
40.2 mm
Full Comparison
Design
Weight
7.5
6.7
Right Shoe Weight Photo
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Left Shoe Weight Photo
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Weight
220.0 g (7.76 oz)
242.0 g (8.54 oz)
Stack Heights
Stack Height Photo
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Heel Stack Height
36.9 mm
40.2 mm
Forefoot Stack Height
30.2 mm
32.9 mm
Heel-To-Toe Drop
6.7 mm
7.3 mm
Advertised Heel-To-Toe Drop
6.0 mm
8.0 mm
External Shape
3D Model Full Shoe
Preview 3D
Preview 3D
Outsole Heel Width
84 mm (3.3")
94 mm (3.7")
Outsole Arch Width
64 mm (2.5")
70 mm (2.8")
Outsole Forefoot Width
114 mm (4.5")
116 mm (4.6")
Heel Width-To-Stack Ratio
2.27
2.34
Forefoot Width-To-Stack Ratio
3.77
3.53
Internal Shape
3D Model Internal
Preview 3D
Preview 3D
Internal Length
276 mm (10.8")
278 mm (10.9")
Internal Heel Width
61 mm (2.4")
65 mm (2.6")
Internal Forefoot Width
94 mm (3.7")
93 mm (3.7")
Wide Sizing Available
No
No
Forefoot Fit: Width
7.6
9.4
Forefoot Width Photo
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Ball-Of-Foot TTS Deviation
-2.2 mm (-0.085")
0.2 mm (0.007")
Toe TTS Deviation
-6.4 mm (-0.253")
-2.7 mm (-0.104")
Forefoot Fit: Height
8.5
10
Forefoot Height Photo
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Toe TTS Deviation
-2.1 mm (-0.081")
1.0 mm (0.040")
Arch Fit: Width
8.5
9.7
Arch Fit Photo
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Arch Width TTS Deviation
-2.6 mm (-0.103")
2.8 mm (0.108")
Length Fit
10
10
Toe Clearance Photo
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Heel Rocker Geometry
7.4
8.3
Heel Rocker Photo
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Heel Spring
21 mm (0.8")
29 mm (1.1")
Heel Apex Position
20.3%
19.9%
Heel Rocker Angle
19.3°
25.8°
Forefoot Rocker Geometry
7.2
6.6
Forefoot Rocker Photo
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Toe Spring
49 mm (1.9")
47 mm (1.9")
Toe Apex Position
62.7%
70.8%
Forefoot Rocker Angle
24.0°
28.1°
Foam
Primary Foam Picture
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Secondary Foam Picture
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Primary Foam Name
LIGHTSTRIKE PRO
PWRRUN PB
Primary Foam Type
TPEE
PEBA
Secondary Foam Name
No Secondary Foam
No Secondary Foam
Secondary Foam Type
No Secondary Foam
No Secondary Foam
Laces
Laces Picture
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Lace Type
Flat
Flat
Width
5.0 mm (0.2")
6.0 mm (0.2")
Thickness
1.1 mm (0.0")
1.9 mm (0.1")
Stretch
6.0%
27.5%
Breathability
7.5
Breathability Video
Upper Breathability
Upper Microscope Photo
Time-To-Dry
8.8
Time-To-Dry Timelapse
Time-To-Dry Graph
Preview Graph
Time To 30% Dry
4.6 hrs
Time To 70% Dry
12.3 hrs
Time To Dry
17.9 hrs
Water Absorption
8.0
Dry Weight Photo
Wet Weight Photo
Water Absorbed
38.6%
Other Features
Other Features Photo
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Tongue Gusset Type
Non-gusseted
Semi-gusseted
Plate
Plastic Shank
None
Performance
Heel Compression Energy Return
8.1
8.0
Heel Compression Video
Heel Energy Return
Preview Graph
Preview Graph
Heel Energy Return
81.4%
80.9%
Forefoot Compression Energy Return
8.4
8.3
Forefoot Compression Video
Forefoot Energy Return
Preview Graph
Preview Graph
Forefoot Energy Return
83.3%
82.8%
Heel Cushioning
8.0
8.3
Heel Cushioning Picture
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Heel Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 550N
3.46 J
3.26 J
Energy Absorbed At 1100N
10.03 J
10.55 J
Energy Absorbed At 1900N
17.07 J
19.04 J
Forefoot Cushioning
8.1
8.6
Forefoot Cushioning Picture
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Forefoot Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 800N
5.16 J
5.09 J
Energy Absorbed At 1300N
8.87 J
9.59 J
Energy Absorbed At 2050N
12.68 J
14.61 J
Heel Firmness
7.7
7.3
Heel Firmness Graph
Preview Graph
Preview Graph
Firmness At 550N
44.0 N/mm
44.7 N/mm
Firmness At 1100N
52.8 N/mm
51.3 N/mm
Firmness At 1900N
73.9 N/mm
69.5 N/mm
Forefoot Firmness
7.5
7.5
Forefoot Firmness Graph
Preview Graph
Preview Graph
Firmness At 800N
53.9 N/mm
56.7 N/mm
Firmness At 1300N
70.3 N/mm
70.2 N/mm
Firmness At 2050N
98 N/mm
95 N/mm
Forefoot Long Run Cushioning
7.6
8.1
Forefoot Long Run Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 10km
8.31 J
8.97 J
Energy Absorbed At 20km
8.17 J
8.77 J
Energy Absorbed At 30km
8.07 J
8.63 J
Energy Absorbed At 40km
7.99 J
8.53 J
Rocker Stiffness
6.1
7.7
Forefoot Rocker Stiffness Video
Forefoot Rocker Stiffness Graph
Preview Graph
Preview Graph
Force To Flatten The Rocker
63 N
107 N
Forefoot Bending Energy Return
7.7
7.8
Forefoot Bending Video
Forefoot Bending Energy Return
Preview Graph
Preview Graph
Forefoot Bending Energy Return
69.4%
69.9%
Forefoot Bending Stiffness
6.4
8.3
Forefoot Bending Resistance Picture
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Forefoot Bending Resistance
Preview Graph
Preview Graph
Forefoot Bending Stiffness
9.4 N/mm
19.5 N/mm
Forefoot Bending Force
247 N
366 N
Heel Compression Depth
6.0
6.2
Heel Compression Graph
Preview Graph
Preview Graph
Heel Compression At 550N
12.5 mm
12.3 mm
Heel Compression At 1100N
20.8 mm
21.4 mm
Heel Compression At 1900N
25.7 mm
27.3 mm
Forefoot Compression Depth
6.3
6.3
Forefoot Compression Graph
Preview Graph
Preview Graph
Forefoot Compression At 800N
14.8 mm
14.1 mm
Forefoot Compression At 1300N
18.5 mm
18.5 mm
Forefoot Compression At 2050N
20.8 mm
21.6 mm
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adidas Adizero Evo SL
Saucony Endorphin Azura
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adidas Adizero Evo SL vs Saucony Endorphin Azura: Main Discussion
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