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Asics Sonicblast

Discontinued · road · Tempo / Daily / Race day · $180

Plated super trainer with a bouncy, propulsive everyday ride.

Built for tempo, daily, race day, at a target pace of 6:15–8:30 /mi on road.

This model is no longer in production. The closest shoe you can buy today is Asics Sonicblast 2.

The spec sheet

Weight
255 g / 9.0 oz
Heel stack
46 mm
Drop
8 mm
Midsole foam
FF Turbo
Plate
Nylon
Cushioning
4 / 5
Energy return
5 / 5
Responsiveness
5 / 5
Rocker
4 / 5
Flexibility
2 / 5
Stability
3 / 5 (5 = most guidance)
Toe-box
Standard
Sizing
True to size
Durability
~400 mi
Price
$180

How it rides

The foam

The midsole is FF Turbo, tuned soft (4/5 on our cushioning scale). The foam is highly resilient — it gives energy back rather than swallowing it, which is what makes the shoe feel eager when you push. At 46 mm of heel stack this sits in max-cushion territory; legs stay fresher on long efforts, but the platform is tall. Combined, the ride reads as explosive at 5/5 responsiveness.

The plate

A nylon (or PEBA-blend) plate adds structure without the harsh stiffness of carbon. You get a firmer, more propulsive toe-off that still flexes at slower paces, which is why nylon-plated shoes double as workout and long-run shoes rather than race-day-only tools.

The geometry

A 8 mm drop is the mainstream middle — familiar to almost anyone coming from a standard trainer. The rocker is aggressive: the sole is curved and stiff enough to tip you into the next stride on its own, which saves the calf on long runs but feels strange when you slow right down. The forefoot is stiff, so it rolls rather than bends — a lever, not a slipper. Support is light — neutral, with a mildly steady platform.

Fit, sizing & life

The toe-box is standard width — comfortable for most feet without swimming. It fits true to size. Expect roughly 400 miles from the outsole, about $0.45 per mile at $180.

For the foams and plates Asics uses across its line, read the Asics brand guide.

How it compares

Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.

Weight

255 g / 9.0 oz

20 g lighter than the catalog median of 275 g

Heel stack

46 mm

10 mm taller than the catalog median of 36 mm

Drop

8 mm

2 mm higher than the catalog median of 6 mm

Price

$180

20 pricier than the catalog median of 160

Responsiveness

5 / 5

Catalog median 3 / 5

Cushioning

4 / 5

Catalog median 4 / 5

Energy return

5 / 5

Catalog median 3 / 5

Durability

~400 mi

Catalog median ~400 mi

Within the Asics line it is lighter than the brand's median (268 g / 9.5 oz) and sits taller than its median stack (38 mm).

Closest alternatives

Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.

Asics Sonicblast 2(2026)

239 g / 8.4 oz · 46 mm · 8 mm drop · Nylon · $190

Dual-foam super trainer with a forked Astroplate — 14 g lighter than the first.

Saucony Kinvara Pro 2

275 g / 9.7 oz · 42 mm · 8 mm drop · Nylon · $180

Tall, plated Kinvara descendant built for long uptempo efforts.

Hoka Mach X2(2024)

252 g / 8.9 oz · 46 mm · 5 mm drop · Nylon · $190

Plated super trainer with a pronounced rocker and a lot of foam.

Saucony Endorphin Speed 5(2025)

238 g / 8.4 oz · 36 mm · 8 mm drop · Nylon · $180

The most versatile plated trainer made — workouts, long runs, race day.

Brooks Hyperion Max 3

281 g / 9.9 oz · 46 mm · 6 mm drop · Nylon · $180

Plated super trainer with DNA Flash v2 for workouts and long efforts.

Lineage & siblings