Nike
Alphafly 4
Product Judgment
Elite
9.1
Category: Race
Release year: 2026
Evidence base: Moderate
Experts are broadly positive, with reservations about heel softness and upgrade value.
Price Judgment
Reasonable
Common retail price: ~$280
Availability: Not Yet Released
Description
Flagship Nike marathon racer, incremental update over Alphafly 3. Prioritizes forefoot propulsion and comfort for race day. Expert reviews highlight improved ride and fit, but note persistent noise and heel softness.
Exceptionally springy, propulsive forefoot with a smooth, soft ride. Noticeably lighter and more responsive than predecessor, with a unique lively sensation underfoot. Heel remains soft and can feel unstable for non-forefoot strikers. Ride is loud and distinctive, with audible squeaks from Air units.
Best suited for lighter, efficient forefoot strikers seeking maximum energy return in marathons. Excels at race pace and fast sessions, but less stable and less suitable for heel strikers or daily mileage. Recommended for runners prioritizing propulsion and comfort over versatility or quietness.
Performance Scores
Comfort
9Softer, smoother ride and improved upper comfort over previous version.
Energy Return
10Exceptionally springy forefoot and new ZoomX LT foam maximize propulsion.
Stability
6Wider plate improves stability but heel softness still causes instability for some.
Durability
6Race-focused construction; long-term durability remains unproven in the available early reviews.
Fun to Ride
9Lively, propulsive toe-off and unique ride feel create an exciting experience.
Run Fitness
Daily
3Too soft and unstable for daily training; best reserved for race efforts.
Long
8Excellent for marathon distances if you are a lighter, efficient forefoot striker.
Tempo
9Responsive forefoot and bounce excel at fast-paced sessions.
Race
10Designed for peak marathon performance with maximum energy return.
Recovery
4Softness and instability make it unsuitable for relaxed, easy runs.
Pros & Cons
- Elite energy return
- Softer, smoother ride
- Improved forefoot stability
- Lightweight for max stack
- Heel instability for some
- Loud, squeaky ride
- Fit runs short
Strong forefoot rebound supports a propulsive race-day ride.
Softer, smoother underfoot feel enhances comfort compared to previous Alphafly.
Wider carbon plate and platform improve forefoot stability at speed.
Lightweight construction despite maximal cushioning stack.
Soft heel can bottom out and feel unstable, especially for heel strikers or heavier runners.
Forefoot Air units remain noisy, producing a persistent squeak and creak during runs.
Fit is short; sizing up may be needed for longer races.
Specifications
Best for paces
2:30–4:45 min/km
Drop
8 mm
Stack height
39 mm heel / 31 mm forefoot
Weight
188 g
Drop
8 mm
Stack height
39 mm heel / 31 mm forefoot
Weight
188 g
Pronation
Neutral
Width
medium
Terrain
Road
Technologies
ZoomX LT foam, Forefoot Air Zoom units, Wide carbon-fibre Flyplate
Plate
Carbon
Best for paces
2:30–4:45 min/km
Comparable Models
Nike Alphafly 3 retains the signature propulsive ride, while Alphafly 4 adds softer cushioning and improved forefoot stability.
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Nike Vaporfly 4 favors a firm, snappy ride for shorter races, while Alphafly 4 emphasizes soft cushioning and forefoot rebound for marathon efforts.
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Adidas Adizero Adios Pro 5 emphasizes a compliant, rolling marathon ride, while Alphafly 4 delivers a more pronounced springy forefoot sensation.
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Mizuno Hyperwarp Pure 2 favors aggressive forefoot running over shorter races, while Alphafly 4 is positioned around marathon cushioning and propulsion.
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ASICS Metaspeed Sky Tokyo combines a snappy forefoot with a plush heel, sharing Alphafly 4's trade-off between lively cushioning and heel stability.
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Topo Specter Elite offers anatomical fit and a stable long-race platform, addressing Alphafly 4's fit and heel-control limitations.
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Saucony Endorphin Pro 5 pairs a roomy fit with a controlled marathon ride, offering a more accommodating option for heel strikers than Alphafly 4.
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Puma Deviate Nitro Elite 4 combines balanced softness with sharp racing geometry, contrasting with Alphafly 4's softer, forefoot-spring-focused ride.
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Brooks Hyperion Elite 6 offers a firm forefoot and notably stable racing platform, addressing Alphafly 4's soft-heel limitation.
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Hoka Rocket X 3 emphasizes control and durable construction over aggressive propulsion, offering a steadier marathon alternative to Alphafly 4.
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