Products
Brooks Adrenaline GTS 23
ASICS GEL-KAYANO 32
Tested using Methodology v0.8.2
Updated Dec 15, 2025 08:17 PM
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Amazon.com
Tested using Methodology v0.9
Updated Dec 08, 2025 08:23 PM
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Asics.com
Weight
282.0 g (9.95 oz)
Heel-To-Toe Drop
12.8 mm
Plate
None
Weight
300.2 g (10.59 oz)
Heel-To-Toe Drop
9.1 mm
Plate
None
Our Verdict
Brooks Adrenaline GTS 23
ASICS GEL-KAYANO 32
The ASICS GEL-KAYANO 32 and the Brooks Adrenaline GTS 23 are both longstanding support trainers aimed at overpronators, but they offer very different ride experiences. The Adrenaline uses Brooks' GuideRails system for support, paired with a high-drop, traditional geometry that feels more structured through the heel but less adaptable overall. Its midsole is noticeably firmer and absorbs less impact, giving it a harsher feel. The ASICS, in contrast, delivers a softer and more protective ride with a smoother heel-to-toe transition thanks to its lower drop and added forefoot stack. It still offers plenty of support thanks to its 4D Guidance sidewalls.
Variants
- Adrenaline GTS 23 (Apricot/Estate Blue/Orchid - (Women - US 7))
- Adrenaline GTS 23 (Baja Blue/Wisteria/Yellow Lime - (Women - US 7))
- Adrenaline GTS 23 (Black/Black/Ebony - (Men - US 9))
- Adrenaline GTS 23 (Black/Black/Ebony - (Women - US 7))
- Adrenaline GTS 23 (Black/Cream/Biscuit - (Men - US 9))
- Adrenaline GTS 23 (Black/Ebony/Liberty - (Men - US 9))
- Adrenaline GTS 23 (Black/Green/White - (Men - US 9))
- Adrenaline GTS 23 (Black/Gunmetal/Sharp Green - (Women - US 7))
- Adrenaline GTS 23 (Black/Hawaiian Ocean/Green - (Men - US 9))
- Adrenaline GTS 23 (Black/Light Blue/Purple - (Women - US 7))
- Adrenaline GTS 23 (Black/Mandarin Red/Silver - (Men - US 9))
- Adrenaline GTS 23 (Black/Nightlife Ebony - (Men - US 9))
- Adrenaline GTS 23 (Black/White/Silver - (Men - US 9))
- Adrenaline GTS 23 (Blanc/Gray/Sunflower - (Women - US 7))
- Adrenaline GTS 23 (Blue Glass/Nile Blue/Marina - (Women - US 7))
- Adrenaline GTS 23 (Blue/Nightlife Black - (Men - US 9))
- Adrenaline GTS 23 (Blue/Open Air/Pink - (Women - US 7))
- Adrenaline GTS 23 (Cloud Blue/Goblin Blue/Lime - (Men - US 9))
- Adrenaline GTS 23 (Coconut/Papaya/Blue - (Women - US 7))
- Adrenaline GTS 23 (Crystal Grey/Surf the Web/Grey - (Men - US 9))
- Adrenaline GTS 23 (Crystal Grey/Villa/White - (Women - US 7))
- Adrenaline GTS 23 (Crystal Seas/Diva Pink/Black - (Men - US 9))
- Adrenaline GTS 23 (Dawn Blue/Purple Cactus/Black - (Women - US 7))
- Adrenaline GTS 23 (Diva Pink/Yellow/Black - (Women - US 7))
- Adrenaline GTS 23 (Ebony/Smoke Green/Clay - (Men - US 9))
- Adrenaline GTS 23 (Grey/Black/Purple - (Women - US 7))
- Adrenaline GTS 23 (Grey/Blue/Red - (Men - US 9))
- Adrenaline GTS 23 (Grey/Crown Blue/Orange - (Men - US 9))
- Adrenaline GTS 23 (Mercury/Copper/Ebony - (Women - US 7))
- Adrenaline GTS 23 (Moonbeam/Iris/Indigo - (Men - US 9))
- Adrenaline GTS 23 (Nine Iron/Folkstone/Sulphur - (Men - US 9))
- Adrenaline GTS 23 (Orchid/Black/Purple - (Women - US 7))
- Adrenaline GTS 23 (Oyster/Black/Red Orange - (Men - US 9))
- Adrenaline GTS 23 (Oyster/Ebony/Alloy - (Men - US 9))
- Adrenaline GTS 23 (Peacoat/Orange/Surf the Web - (Men - US 9))
- Adrenaline GTS 23 (Peacoat/Ultramarina/Orange - (Men - US 9))
- Adrenaline GTS 23 (Pink/Festival Fuchsia/Black - (Women - US 7))
- Adrenaline GTS 23 (Raspberry/Papaya/Blue - (Women - US 7))
- Adrenaline GTS 23 (Red Orange/Black/Yellow - (Men - US 9))
- Adrenaline GTS 23 (Skylight/Sunset/Nightlife - (Women - US 7))
- Adrenaline GTS 23 (Storm Blue/Pink/Aqua - (Women - US 7))
- Adrenaline GTS 23 (Surf/White/Tango - (Men - US 9))
- Adrenaline GTS 23 (Surf/White/Tango - (Women - US 7))
- Adrenaline GTS 23 (Vista Blue/Navy/Linen - (Women - US 7))
- Adrenaline GTS 23 (White Sand/Grey/Cyber Yellow - (Men - US 9))
- Adrenaline GTS 23 (White Sand/Sunset/Fuchsia - (Women - US 7))
- Adrenaline GTS 23 (White/Black - (Men - US 9))
- Adrenaline GTS 23 (White/Black - (Women - US 7))
- Adrenaline GTS 23 (White/Black/Orchid Bouquet - (Women - US 7))
- Adrenaline GTS 23 (White/Blackened Pearl/Red - (Men - US 9))
- Adrenaline GTS 23 (White/Cream/Pink - (Men - US 9))
- Adrenaline GTS 23 (White/Gray/Rose Gold - (Women - US 7))
- Adrenaline GTS 23 (White/Grey/Black - (Men - US 9))
- Adrenaline GTS 23 (White/Grey/Black - (Women - US 7))
- Adrenaline GTS 23 (White/Illusion Blue - (Women - US 7))
- Adrenaline GTS 23 (White/Oyster/Silver - (Women - US 7))
- Adrenaline GTS 23 (Whitecap/Surf/Flower - (Women - US 7))
- Adrenaline GTS 23 (Zephyr/Blue/Coconut - (Women - US 7))
- GEL-KAYANO 32 (Black/Dark Currant - (Women - US 7))
- GEL-KAYANO 32 (Black/Graphite Grey - (Men - US 9))
- GEL-KAYANO 32 (Black/Graphite Grey - (Women - US 7))
- GEL-KAYANO 32 (Black/Jasper Green - (Men - US 9))
- GEL-KAYANO 32 (Black/White - (Men - US 9))
- GEL-KAYANO 32 (Black/White - (Women - US 7))
- GEL-KAYANO 32 (Blue Fade/Indigo Fog - (Women - US 7))
- GEL-KAYANO 32 (Cream/Denim Blue - (Men - US 9))
- GEL-KAYANO 32 (Dark Pink Clay/Dark Currant - (Women - US 7))
- GEL-KAYANO 32 (Flash Red/Beet Juice - (Men - US 9))
- GEL-KAYANO 32 (Gravel/Citron - (Men - US 9))
- GEL-KAYANO 32 (Midnight/Black - (Men - US 9))
- GEL-KAYANO 32 (Midnight/Stillwater - (Women - US 7))
- GEL-KAYANO 32 (Monument Blue/Whisper Green - (Women - US 7))
- GEL-KAYANO 32 (Oatmeal/Meteor Grey - (Men - US 9))
- GEL-KAYANO 32 (Oatmeal/Meteor Grey - (Women - US 7))
- GEL-KAYANO 32 (Piedmont Grey/Gravel - (Men - US 9))
- GEL-KAYANO 32 (Piedmont Grey/Gravel - (Women - US 7))
- GEL-KAYANO 32 (White/Champagne - (Women - US 7))
- GEL-KAYANO 32 (White/Jasper Green - (Men - US 9))
- GEL-KAYANO 32 (White/Orange Glow - (Men - US 9))
- GEL-KAYANO 32 (White/Orange Glow - (Women - US 7))
- GEL-KAYANO 32 (White/Pure Silver - (Men - US 9))
- GEL-KAYANO 32 (Winter Sea/Midnight - (Men - US 9))
Main Differences for
Marathon Racing
Marathon Racing
Threshold
Marathon Racing
4.3
5.4
Forefoot Stack Height
23.6 mm
32.6 mm
Forefoot Energy Return
5.1
1.6
Heel Stack Height
36.4 mm
41.7 mm
Heel Energy Return
4.2
1.2
Weight
5.1
4.4
Forefoot Cushioning
1.1
7.4
Heel Cushioning
1.3
7.3
Full Comparison
Design
Weight
5.1
4.4
Right Shoe Weight Photo
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Left Shoe Weight Photo
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Weight
282.0 g (9.95 oz)
300.2 g (10.59 oz)
Stack Heights
Stack Height Photo
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Heel Stack Height
36.4 mm
41.7 mm
Forefoot Stack Height
23.6 mm
32.6 mm
Heel-To-Toe Drop
12.8 mm
9.1 mm
Advertised Heel-To-Toe Drop
12.0 mm
8.0 mm
External Shape
3D Model Full Shoe
Outsole Heel Width
92 mm (3.6")
94 mm (3.7")
Outsole Arch Width
70 mm (2.8")
78 mm (3.1")
Outsole Forefoot Width
116 mm (4.6")
118 mm (4.6")
Heel Width-To-Stack Ratio
2.53
2.25
Forefoot Width-To-Stack Ratio
4.92
3.62
Internal Shape
3D Model Internal
Internal Length
280 mm (11.0")
280 mm (11.0")
Internal Heel Width
66 mm (2.6")
68 mm (2.7")
Internal Forefoot Width
90 mm (3.5")
97 mm (3.8")
Wide Sizing Available
Yes
Yes
Other Features
Other Features Photo
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Tongue Gusset Type
Fully-gusseted
Fully-gusseted
Plate
None
None
Performance
Heel Energy Return
4.2
1.2
Heel Compression Video
Heel Energy Return
Heel Energy Return
70.9%
65.5%
Forefoot Energy Return
5.1
1.6
Forefoot Compression Video
Forefoot Energy Return
Forefoot Energy Return
72.0%
67.0%
Heel Cushioning
1.3
7.3
Heel Cushioning Picture
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Heel Cushioning
Energy Absorbed At 550N
0.85 J
2.98 J
Energy Absorbed At 1100N
2.82 J
8.96 J
Energy Absorbed At 1900N
5.48 J
16.53 J
Forefoot Cushioning
1.1
7.4
Forefoot Cushioning Picture
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Forefoot Cushioning
Energy Absorbed At 800N
0.60 J
4.29 J
Energy Absorbed At 1300N
1.76 J
7.86 J
Energy Absorbed At 2050N
3.09 J
11.92 J
Heel Firmness
3.1
5.3
Heel Firmness
Firmness At 550N
49.9 N/mm
57.3 N/mm
Firmness At 1100N
68.0 N/mm
102.7 N/mm
Firmness At 1900N
86.7 N/mm
199.2 N/mm
Forefoot Firmness
4.6
7.8
Forefoot Firmness
Firmness At 800N
70.8 N/mm
106.5 N/mm
Firmness At 1300N
116.4 N/mm
200.4 N/mm
Firmness At 2050N
171.4 N/mm
387.6 N/mm
Forefoot Long Run Cushioning
6.9
Forefoot Long Run Cushioning
Energy Absorbed At 10km
7.53 J
Energy Absorbed At 20km
7.35 J
Energy Absorbed At 30km
7.25 J
Energy Absorbed At 40km
7.18 J
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Brooks Adrenaline GTS 23
ASICS GEL-KAYANO 32
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Brooks Adrenaline GTS 23 vs ASICS GEL-KAYANO 32: Main Discussion
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