Products
ASICS GEL-KAYANO 31
Nike Structure 26
Tested using Methodology v0.8.2
Updated Oct 20, 2025 07:44 PM
SEE PRICE
Asics.com
Tested using Methodology v0.8.2
Updated Oct 21, 2025 06:30 PM
SEE PRICE
Amazon.com
Weight
308.4 g (10.88 oz)
Heel-To-Toe Drop
10.9 mm
Plate
None
Weight
293.9 g (10.37 oz)
Heel-To-Toe Drop
8.5 mm
Plate
None
Our Verdict
ASICS GEL-KAYANO 31
Nike Structure 26
The Nike Structure 26 and ASICS GEL-KAYANO 31 are two classic stability shoes that are among their respective brands' oldest series. The GEL-KAYANO 31 has more stability-focused design elements, including a harder block of foam in the midfoot for arch support, and a softer pod of foam on the lateral side, designed to spring over-pronators back into a more neutral position; the Structure 26 meanwhile mostly relies on guide rails on both sides of the shoe to stabilise the foot. The ASICS shoe is heavier and higher stacked than the Nike shoe, with much worse energy return.
Variants
- GEL-KAYANO 31 (Birch/Energy Aqua - (Women - US 7))
- GEL-KAYANO 31 (Black/Black - (Men - US 9))
- GEL-KAYANO 31 (Black/Black - (Women - US 7))
- GEL-KAYANO 31 (Black/Bold Magenta - (Women - US 7))
- GEL-KAYANO 31 (Black/Cool Matcha - (Men - US 9))
- GEL-KAYANO 31 (Black/Pure Silver - (Women - US 7))
- GEL-KAYANO 31 (Black/Rainy Lake - (Men - US 9))
- GEL-KAYANO 31 (Blue Expanse/Champagne - (Men - US 9))
- GEL-KAYANO 31 (Blue Expanse/Rose Gold - (Women - US 7))
- GEL-KAYANO 31 (Bold Magenta/Purple Spectrum - (Women - US 7))
- GEL-KAYANO 31 (Breeze/White - (Women - US 7))
- GEL-KAYANO 31 (Carbon/Taupe Grey - (Men - US 9))
- GEL-KAYANO 31 (Coffee/Nova Orange - (Women - US 7))
- GEL-KAYANO 31 (Cool Grey/Pure Silver - (Women - US 7))
- GEL-KAYANO 31 (Cool Matcha/Celadon - (Men - US 9))
- GEL-KAYANO 31 (Cool Matcha/Light Celadon - (Women - US 7))
- GEL-KAYANO 31 (Cream/Steel Blue - (Women - US 7))
- GEL-KAYANO 31 (Deep Mars/Black - (Men - US 9))
- GEL-KAYANO 31 (Desert Red/White - (Women - US 7))
- GEL-KAYANO 31 (Digital Aqua/Bright Cyan - (Men - US 9))
- GEL-KAYANO 31 (Illuminate Mint/Pure Silver - (Women - US 7))
- GEL-KAYANO 31 (Indigo Blue/Gunmetal - (Men - US 9))
- GEL-KAYANO 31 (Indigo Blue/Pure Silver - (Women - US 7))
- GEL-KAYANO 31 (Light Celadon/Safety Yellow - (Men - US 9))
- GEL-KAYANO 31 (Light Celadon/Safety Yellow - (Women - US 7))
- GEL-KAYANO 31 (Lite-show/Digital Aqua - (Men - US 9))
- GEL-KAYANO 31 (Oatmeal/Pearl Pink - (Women - US 7))
- GEL-KAYANO 31 (Piedmont Grey/Digital Aqua - (Women - US 7))
- GEL-KAYANO 31 (Piedmont Grey/Fiery Red - (Men - US 9))
- GEL-KAYANO 31 (Piedmont Grey/Papaya - (Women - US 7))
- GEL-KAYANO 31 (Pure Aqua/Pure Silver - (Men - US 9))
- GEL-KAYANO 31 (Pure Aqua/Pure Silver - (Women - US 7))
- GEL-KAYANO 31 (Rich Navy/Spice Latte - (Men - US 9))
- GEL-KAYANO 31 (Sheet Rock/White - (Women - US 7))
- GEL-KAYANO 31 (Smog Green/Black - (Men - US 9))
- GEL-KAYANO 31 (Steel Grey/Piedmont Grey - (Men - US 9))
- GEL-KAYANO 31 (White Sage/Birch - (Men - US 9))
- GEL-KAYANO 31 (White/Breeze - (Men - US 9))
- GEL-KAYANO 31 (White/Bright Cyan - (Men - US 9))
- GEL-KAYANO 31 (White/Concrete - (Men - US 9))
- GEL-KAYANO 31 (White/Dolphin Grey - (Women - US 7))
- GEL-KAYANO 31 (White/Faded Orange - (Women - US 7))
- GEL-KAYANO 31 (White/Piedmont Grey - (Men - US 9))
- GEL-KAYANO 31 (White/White - (Women - US 7))
- Structure 26 (Black/Cool Grey/Metallic Silver/White - (Men - US 9))
- Structure 26 (Black/Iron Grey/Black - (Men - US 9))
- Structure 26 (Black/White/Cool Grey/Metallic Silver - (Women - US 7))
- Structure 26 (Hyper Pink/Black/Pink Spell/White - (Women - US 7))
- Structure 26 (Particle Pink/Metallic Rose Gold/Taupe Grey/Silt Red - (Women - US 7))
- Structure 26 (Summit White/Vast Grey/College Grey/Black - (Men - US 9))
- Structure 26 (White/Black/Barely Green/Mint Foam/Cannon - (Women - US 7))
- Structure 26 (White/Black/Pure Platinum - (Women - US 7))
- Structure 26 (White/Bright Crimson/Photon Dust/Black - (Men - US 9))
- Structure 26 (White/Pure Platinum/Barely Volt/Black - (Men - US 9))
Main Differences for
Marathon Racing
Marathon Racing
Threshold
Marathon Racing
5.2
5.7
Forefoot Energy Return
1.3
3.5
Weight
4.0
4.6
Forefoot Stack Height
31.3 mm
29.4 mm
Heel Energy Return
1.6
2.9
Full Comparison
Design
Weight
4.0
4.6
Right Shoe Weight Photo
Left Shoe Weight Photo
Weight
308.4 g (10.88 oz)
293.9 g (10.37 oz)
Stack Heights
Stack Height Photo
Heel Stack Height
42.2 mm
37.9 mm
Forefoot Stack Height
31.3 mm
29.4 mm
Heel-To-Toe Drop
10.9 mm
8.5 mm
Advertised Heel-To-Toe Drop
10.0 mm
10.0 mm
External Shape
3D Model Full Shoe
Outsole Heel Width
95 mm (3.7")
93 mm (3.7")
Outsole Arch Width
84 mm (3.3")
81 mm (3.2")
Outsole Forefoot Width
117 mm (4.6")
114 mm (4.5")
Heel Width-To-Stack Ratio
2.25
2.46
Forefoot Width-To-Stack Ratio
3.73
3.88
Internal Shape
3D Model Internal
Internal Length
279 mm (11.0")
277 mm (10.9")
Internal Heel Width
66 mm (2.6")
66 mm (2.6")
Internal Forefoot Width
96 mm (3.8")
92 mm (3.6")
Wide Sizing Available
Yes
Yes
Other Features
Other Features Photo
Tongue Gusset Type
Fully-gusseted
Semi-gusseted
Plate
None
None
Performance
Heel Energy Return
1.6
2.9
Heel Compression Video
Heel Energy Return
Heel Energy Return
66.8%
69.3%
Forefoot Energy Return
1.3
3.5
Forefoot Compression Video
Forefoot Energy Return
Forefoot Energy Return
65.7%
70.1%
Heel Cushioning
7.6
6.9
Heel Cushioning Picture
Heel Cushioning
Energy Absorbed At 550N
3.20 J
2.89 J
Energy Absorbed At 1100N
9.25 J
8.48 J
Energy Absorbed At 1900N
16.85 J
15.38 J
Forefoot Cushioning
6.6
5.5
Forefoot Cushioning Picture
Forefoot Cushioning
Energy Absorbed At 800N
3.74 J
3.33 J
Energy Absorbed At 1300N
7.11 J
5.78 J
Energy Absorbed At 2050N
11.05 J
8.98 J
Heel Firmness
5.1
5.9
Heel Firmness
Firmness At 550N
53.0 N/mm
61.9 N/mm
Firmness At 1100N
103.6 N/mm
109.8 N/mm
Firmness At 1900N
198.1 N/mm
226.5 N/mm
Forefoot Firmness
8.0
8.9
Forefoot Firmness
Firmness At 800N
113.7 N/mm
152.0 N/mm
Firmness At 1300N
209.5 N/mm
287.6 N/mm
Firmness At 2050N
392.1 N/mm
462.1 N/mm
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ASICS GEL-KAYANO 31
Nike Structure 26
Comments
ASICS GEL-KAYANO 31 vs Nike Structure 26: Main Discussion
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