Why choose GEL-KAYANO 31?Buy GEL-KAYANO 31 if
+2.6 Stability & Support+2.6 Stability & Support: Better measured rating in wear-test consensus.
Head-to-Head Comparison·Lab Telemetry
ASICS · Max Cushion
GEL-KAYANO 31
82
Stack40mm
Weight305g
Drop10mm
ASICS · Max Cushion
Novablast 4
82
Stack41.5mm
Weight260g
Drop8mm
Key Differences & Advantages
Why choose Novablast 4?Buy Novablast 4 if
+2.0 Weight Efficiency+2.0 Weight Efficiency: Better measured rating in wear-test consensus.
The Runner's Pick
Final Decision: Who Buys Which Model?
Side-by-side selection criteria grounded in verified mechanical specs
ASICS
GEL-KAYANO 31
82
Choose the GEL-KAYANO 31 if:
Choose the GEL-KAYANO 31 if your priority is a secure, planted base with confident guidance powered by FF BLAST PLUS ECO foam with PureGEL rearfoot insert and 4D Guidance System (305g). It is the better match for runners targeting neutral support and surefooted stride containment over the Novablast 4's focus on high-mileage protection and low-impact recovery cruising.
10mm drop · 305g · $165Audit
ASICS
Novablast 4
82
Choose the Novablast 4 if:
Choose the Novablast 4 if your priority is an ultralight chassis with effortless turnover powered by FF BLAST+ Eco supercritical foam and a noticeably lighter weight (260g vs 305g). It is the better match for runners targeting minimizing leg fatigue across late-mile splits over the GEL-KAYANO 31's focus on neutral support and surefooted stride containment.
8mm drop · 260g · $140Audit
Dealbreaker Warnings · Who Should Skip These
Critical biomechanical trade-offs to avoid buying the wrong shoe
ASICS GEL-KAYANO 31
Skip GEL-KAYANO 31 if you want a featherweight speed-day shoe; at 305g, it is calibrated for workhorse longevity rather than race pace.
ASICS Novablast 4
Skip Novablast 4 if you need medial guidance for moderate to severe overpronation; the tall, softly sculpted platform shifts under lateral load.
8-Axis Telemetry Radar
Dead even · 82 PTS
GEL-KAYANO82vsNovablast82
Tap any axis node to inspect wear-test citations
🔬 Inspect Granular Lab Specs & Fit Telemetry▼
Fit & Sizing Consensus
Real-world wear-test consensus across runner foot profiles
GEL-KAYANO 31
Novablast 4
Sizing LengthMatch
Runs Small
True to Size
GEL-KAYANO88%Novablast63%
Runs Large
GEL-KAYANO 31: True to size(n=28)
Novablast 4: True to size(n=19)
Toe Box WidthSizing differs
Performance Tight
Standard
GEL-KAYANO82%
Wide
Novablast74%
GEL-KAYANO 31: Standard width(n=24)
Novablast 4: Roomy / wide toe box(n=18)
Arch SupportSizing differs
Flat / Low
Novablast61%
Neutral Stability
GEL-KAYANO78%
High Arch
GEL-KAYANO 31: Neutral stability / moderate arch(n=20)
Novablast 4: Flat / low arch(n=15)
| RADAR AXIS | GEL-KAYANO 31 | Novablast 4 | Δ DELTA | COHORT RANK |
|---|---|---|---|---|
| Cushioning & Softness | 9.0 | 9.1 | −0.1 (Novablast 4 higher by NaN) | #3/18 |
| Energy Return & Bounce | 7.5 | 9.0 | −1.5 (Novablast 4 higher by NaN) | #3/18 |
| Weight Efficiency | 6.7 | 8.7 | −2.0 (Novablast 4 higher by NaN) | #3/18 |
| Stability & Support | 8.8 | 6.2 | +2.6 (GEL-KAYANO 31 higher by 2.6) | #3/18 |
| Traction & Grip | 7.7 | 7.6 | +0.1 (GEL-KAYANO 31 higher by 0.1) | #3/18 |
| Upper Comfort & Lockdown | 8.5 | 8.3 | +0.2 (GEL-KAYANO 31 higher by 0.2) | #3/18 |
| Breathability | 7.3 | 8.6 | −1.3 (Novablast 4 higher by NaN) | #3/18 |
| Durability | 8.2 | 7.9 | +0.3 (GEL-KAYANO 31 higher by 0.3) | #3/18 |
| Meta-Score | 82strong | 82strong | 0.0 | Calibrated |
The Record · Specification Telemetry
Cohort-relative percentiles and verified technical specs
GEL-KAYANO 31
Novablast 4
Weight (US Men's 9)Lighter than 78% of daily trainers
GEL-KAYANO 31305g
Novablast 4260g
›ASICS Novablast 4 saves 45g per stride, noticeable after mile 6 of continuous running.
Heel Cushion StackMore underfoot foam than 65% of trainers
GEL-KAYANO 3140.0mm
Novablast 441.5mm
›ASICS Novablast 4 delivers 1.5mm more vibration isolation for long recovery efforts than GEL-KAYANO 31.
Heel-to-Toe DropΔ 2.0mm
GEL-KAYANO 3110.0mm
Novablast 48.0mm
›GEL-KAYANO 31's 10mm drop shifts load toward the knees/quads, while Novablast 4's 8mm drop engages the Achilles and calves.
Midsole Foam & Energy ReturnHigher rebound than 92% of tested foams
FF BLAST PLUS ECO foam with PureGEL rearfoot insert and 4D Guidance System7.5/10
FF BLAST+ Eco supercritical foam9.0/10
›FF BLAST+ Eco supercritical foam yields a springier, high-rebound toe-off compared to FF BLAST PLUS ECO foam with PureGEL rearfoot insert and 4D Guidance System's grounded, stable feel.
Outsole Durability & TractionTougher rubber than 86% of road shoes
HYBRID ASICSGRIP outsole combining AHARPLUS with sticky grip rubber8.2/10
ASICSGRIP with exposed midsole foam patches7.9/10
›GEL-KAYANO 31 utilizes HYBRID ASICSGRIP outsole combining AHARPLUS with sticky grip rubber compound formulated for extended 500+ mile abrasive asphalt longevity.
Fit & Sizing Consensus
Real-world wear-test consensus across runner foot profiles
GEL-KAYANO 31
Novablast 4
Sizing LengthMatch
Runs Small
True to Size
GEL-KAYANO88%Novablast63%
Runs Large
GEL-KAYANO 31: True to size(n=28)
Novablast 4: True to size(n=19)
Toe Box WidthSizing differs
Performance Tight
Standard
GEL-KAYANO82%
Wide
Novablast74%
GEL-KAYANO 31: Standard width(n=24)
Novablast 4: Roomy / wide toe box(n=18)
Arch SupportSizing differs
Flat / Low
Novablast61%
Neutral Stability
GEL-KAYANO78%
High Arch
GEL-KAYANO 31: Neutral stability / moderate arch(n=20)
Novablast 4: Flat / low arch(n=15)
The Record · Specification Telemetry
Cohort-relative percentiles and verified technical specs
GEL-KAYANO 31
Novablast 4
Weight (US Men's 9)Lighter than 78% of daily trainers
GEL-KAYANO 31305g
Novablast 4260g
›ASICS Novablast 4 saves 45g per stride, noticeable after mile 6 of continuous running.
Heel Cushion StackMore underfoot foam than 65% of trainers
GEL-KAYANO 3140.0mm
Novablast 441.5mm
›ASICS Novablast 4 delivers 1.5mm more vibration isolation for long recovery efforts than GEL-KAYANO 31.
Heel-to-Toe DropΔ 2.0mm
GEL-KAYANO 3110.0mm
Novablast 48.0mm
›GEL-KAYANO 31's 10mm drop shifts load toward the knees/quads, while Novablast 4's 8mm drop engages the Achilles and calves.
Midsole Foam & Energy ReturnHigher rebound than 92% of tested foams
FF BLAST PLUS ECO foam with PureGEL rearfoot insert and 4D Guidance System7.5/10
FF BLAST+ Eco supercritical foam9.0/10
›FF BLAST+ Eco supercritical foam yields a springier, high-rebound toe-off compared to FF BLAST PLUS ECO foam with PureGEL rearfoot insert and 4D Guidance System's grounded, stable feel.
Outsole Durability & TractionTougher rubber than 86% of road shoes
HYBRID ASICSGRIP outsole combining AHARPLUS with sticky grip rubber8.2/10
ASICSGRIP with exposed midsole foam patches7.9/10
›GEL-KAYANO 31 utilizes HYBRID ASICSGRIP outsole combining AHARPLUS with sticky grip rubber compound formulated for extended 500+ mile abrasive asphalt longevity.
| RADAR AXIS | GEL-KAYANO 31 | Novablast 4 | Δ DELTA | COHORT RANK |
|---|---|---|---|---|
| Cushioning & Softness | 9.0 | 9.1 | −0.1 (Novablast 4 higher by NaN) | #3/18 |
| Energy Return & Bounce | 7.5 | 9.0 | −1.5 (Novablast 4 higher by NaN) | #3/18 |
| Weight Efficiency | 6.7 | 8.7 | −2.0 (Novablast 4 higher by NaN) | #3/18 |
| Stability & Support | 8.8 | 6.2 | +2.6 (GEL-KAYANO 31 higher by 2.6) | #3/18 |
| Traction & Grip | 7.7 | 7.6 | +0.1 (GEL-KAYANO 31 higher by 0.1) | #3/18 |
| Upper Comfort & Lockdown | 8.5 | 8.3 | +0.2 (GEL-KAYANO 31 higher by 0.2) | #3/18 |
| Breathability | 7.3 | 8.6 | −1.3 (Novablast 4 higher by NaN) | #3/18 |
| Durability | 8.2 | 7.9 | +0.3 (GEL-KAYANO 31 higher by 0.3) | #3/18 |
| Meta-Score | 82strong | 82strong | 0.0 | Calibrated |
The Runner's Pick
Final Decision: Who Buys Which Model?
Side-by-side selection criteria grounded in verified mechanical specs
ASICS
GEL-KAYANO 31
82
Choose the GEL-KAYANO 31 if:
Choose the GEL-KAYANO 31 if your priority is a secure, planted base with confident guidance powered by FF BLAST PLUS ECO foam with PureGEL rearfoot insert and 4D Guidance System (305g). It is the better match for runners targeting neutral support and surefooted stride containment over the Novablast 4's focus on high-mileage protection and low-impact recovery cruising.
10mm drop · 305g · $165Audit
ASICS
Novablast 4
82
Choose the Novablast 4 if:
Choose the Novablast 4 if your priority is an ultralight chassis with effortless turnover powered by FF BLAST+ Eco supercritical foam and a noticeably lighter weight (260g vs 305g). It is the better match for runners targeting minimizing leg fatigue across late-mile splits over the GEL-KAYANO 31's focus on neutral support and surefooted stride containment.
8mm drop · 260g · $140Audit
Quiver Overlap
Direct Max Cushion Rivals
2-Shoe Rotation Strategy
Both models occupy the exact same max cushion slot on your shoe rack. Rather than buying both, runner consensus suggests picking the lighter Novablast 4 (260g) for quicker cadence, or the GEL-KAYANO 31 for its FF BLAST PLUS ECO foam with PureGEL rearfoot insert and 4D Guidance System ride feel and structure.
GEL-KAYANO 31 RoleMax Cushion Workhorse
Novablast 4 RoleAlternative Max Cushion
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