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Racer for stride runners

Asics Metaspeed Sky Tokyo

Asics splits its racers by how you run rather than how fast. The Sky is for runners who get quicker by lengthening the stride, and this one carries the new FF Leap foam.

RacedayR5 499Released July 2025
Asics Metaspeed Sky TokyoAsics
Category
Raceday
Stack height
39.5 / 34.5mm
Drop
5mm
Weight
170g
Plate
Carbon
Midsole
FF Turbo Plus over FF Leap
Surface
Road
Best for
Race day from the 10K to the marathon, if your stride grows when you push
Price
R5 499

Asics sells two racers and asks how you run rather than how fast. The Sky is for runners whose stride lengthens when they speed up, the Edge for runners whose cadence rises. Inside, a flat carbon plate splits two foams: the bulk of the midsole is FF Leap underneath it, with a thin layer of firmer FF Turbo Plus above so the landing stays steady. That is 39.5/34.5mm of stack, a 5mm drop, and 170g, with AsicsGrip under the forefoot.

2 layers

  1. Bottom layer, under the plate

    FF Leap

    ATPU, aliphatic thermoplastic polyurethane

  2. Thin top layer, above the plate and under the foot

    FF Turbo Plus

    PEBA, polyether block amide

Plate
carbon plate, flat rather than curved, sitting higher in the stack than the Sky Paris
Energy return
78.5% heel, 78.2% forefootLab measured by RunRepeat

The bouncy layer sits below the plate and the firmer one above it, which is Asics buying landing stability with the older foam. FF Leap is the same A-TPU that softened the Superblast 3, and Asics rates it 15 percent lighter and 30 percent softer than the FF Turbo Plus it sits under.

Coming soon

We only give a shoe a verdict once we have run in it ourselves. The numbers above are the facts. The opinion lands when the miles are done.