Nike Alphafly 4
The Alphafly 4 continues Nike's max-tech marathon racer formula: ZoomX foam, a full-length carbon Flyplate, and forefoot Air Zoom units at the 40mm legal limit. Expect the same aggressive, bouncy propulsion as the 3 with updated geometry and upper. It exists for one job, racing 10K to the marathon as fast as possible.
Reach for the Nike Alphafly 4 for race day. It's a neutral shoe, best for runners with an efficient stride who don't need pronation support. The tall, soft stack favors comfort over ground feel — great for high mileage and bigger runners, less so for racing snappiness.
- Top-tier race-day propulsion
- Race-legal 40mm max stack
- Refined fit over the 3
- Premium super-shoe price
- Not durable enough for regular training
Ratings compare the current lineup. Price favors lower cost.
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