ASICS Sonicblast Review: PEBAX Plate, Not Carbon

ASICS Sonicblast Review: PEBAX Plate, Not Carbon

Disclosure: TrainingPlan has not hands-on tested this exact model. This research-based review uses ASICS exact-model pages, its launch announcement, and independent exact-model testing. No Amazon US listing is currently verified for publication.

Quick Verdict

The original ASICS Sonicblast is a high-stack road super trainer that combines FF BLAST MAX, a top layer of FF TURBO², and a centered PEBAX ASTROPLATE. It does not use a carbon-fiber plate. ASICS publishes 46mm at the heel and 38mm at the forefoot for men, an 8mm drop, and a 9.0-ounce men's reference. The women's reference is 223g, or about 7.9 ounces.

Its strongest use is steady-to-fast road running: tempo work, long progressions, and daily sessions for runners who enjoy a stiff rocker. The tall cushion protects without feeling mushy, but independent reviewers found the heel clunky and the midfoot stiff at easy pace. MSRP was MSRP: $180 when the shoe launched in September 2025.

Key Specifications

ASICS' US product page establishes the foam package, 8mm drop, weight, neutral positioning, and MSRP: $180 list price. The Canadian exact page publishes 46/38mm and explicitly identifies PEBAX plate material. Doctors of Running's review corroborates the core specifications and supplies detailed ride and fit observations.

What Changed

Our previous record described a carbon-plated, moderate-cushion shoe with 40/32mm stack and 8.2/7.0-ounce weights. Those values materially understated the shoe and named the wrong plate material. The corrected record uses high cushioning, 46/38mm, 9.0/7.9 ounces, and PEBAX ASTROPLATE.

The old Amazon URL was quarantined because we lack dated title and ASIN evidence that it represented the exact first-generation Sonicblast rather than a different size, region, or later model.

Ride and Intended Use

FF TURBO² supplies a lively top layer, while FF BLAST MAX forms the deeper carrier. The centered plate adds longitudinal stiffness and works with the rocker to move loading toward the forefoot. That combination feels more natural as pace rises; it is not automatic propulsion, and response depends on foot strike, speed, mass, and plate alignment.

The shoe can serve as a daily trainer for runners who like structure, but its clearest role is long workouts and tempo running. The lightweight-shoe guide explains how a super trainer differs from a lighter interval shoe or race-only model.

Fit and Sizing

Independent review evidence points to normal overall length with a secure performance upper. The tall platform and plate make alignment more important than ordinary step-in softness. Test heel hold, arch position, forefoot width, and whether the rocker breaks where the foot expects it to.

Only standard width is verified for this generation. The shoe-fit guide is useful if pressure appears in the toe box or midfoot; going longer is not a reliable width solution.

What Works Well

The Sonicblast offers substantial cushioning without the soft, collapsing sensation of some maximal trainers. FF TURBO² adds forefoot response, ASICSGRIP supplies useful road traction, and the rocker makes sustained faster running the shoe's most coherent application. It can consolidate a long run and tempo role for the right runner.

RTINGS' lab review adds sample-specific measurements and testing. Those findings can illuminate construction but do not guarantee an individual pace gain or a fixed useful life.

Tradeoffs

The 46mm heel is very tall, and the shoe weighs more than our old record implied. Doctors of Running described a clunky heel and stiff midfoot during slower running. Runners seeking flexible ground feel, relaxed heel transitions, or a minimalist workout tool should look elsewhere. The premium price also invites comparison with lighter non-plated trainers.

Who Should Consider This Shoe

Consider Sonicblast for long tempo sessions, progression runs, and road training when a high, stiff, responsive rocker feels efficient and stable. Our super-trainer guide covers the category's tradeoffs.

Who Should Look Elsewhere

Look elsewhere for wide sizing, low-stack flexibility, a soft easy-day heel, or a true carbon race shoe. The carbon-racing guide covers race-specific alternatives.

Cross-Brand Comparison

The Saucony Endorphin Speed 4 is lower and uses a winged nylon plate. The New Balance FuelCell SuperComp Trainer v2 provides another tall plated training concept with different foam and geometry. Fit and preferred stiffness should decide.

Same-Brand Comparison

The ASICS Megablast is lighter, taller, and non-plated. The ASICS Superblast 2 is another high-stack non-carbon trainer with a different foam blend. Sonicblast is the plated, more deliberately stiff choice.

Value

At MSRP: $180, Sonicblast competes with premium super trainers rather than ordinary daily shoes. Its value comes from combining cushion and workout response, not from replacing every easy shoe and racer. Sonicblast 2 was announced for September 2026, so compare current pricing before buying the original.

Final Verdict

The corrected Sonicblast is a 46/38mm, 9-ounce men's super trainer with FF BLAST MAX, FF TURBO², and a PEBAX ASTROPLATE. It is responsive and protective at pace, but tall, stiff, and less graceful during easy running.