ASICS Superblast 3 vs Megablast vs Sonicblast — Which Super Trainer Should You Choose?

ASICS now has three premium BLAST-series trainers sitting surprisingly close together: the Superblast 3, Megablast, and Sonicblast. All three use tall cushioning platforms, all three have an 8 mm drop, and all three are designed to handle more than ordinary easy mileage.

But they are not interchangeable.

The ASICS Superblast 3 is the balanced all-around option, combining race-derived FF LEAP foam with a more controlled lower layer. The ASICS Megablast emphasizes soft, unplated bounce through a full-length FF TURBO² midsole. The ASICS Sonicblast is the speed-focused model, using two foams and an ASTROPLATE to create a more directed transition.

Here is how the three shoes compare and which one makes the most sense for your training.

Quick Verdict

• Choose the Superblast 3 if you want the most versatile option for daily runs, long runs, steady efforts, and occasional workouts.
• Choose the Megablast if you prioritize an energetic but unplated ride with full-length superfoam cushioning.
• Choose the Sonicblast if workouts and faster running are the priority and you want the added structure of a non-carbon propulsion plate.

Cadence’s overall pick: The Superblast 3 is the safest one-shoe choice because its dual-foam construction provides a broader balance of cushioning, responsiveness, and control. The Megablast is the more specialized unplated option, while the Sonicblast is the clearest workout shoe.

ASICS Superblast 3 vs Megablast vs Sonicblast: Specs

*Megablast and Sonicblast stack measurements reflect the current Cadence database. Weight and measurement figures can vary by size, gender, and region.

The Biggest Difference Is Underfoot

The names make these shoes sound like three versions of the same idea, but their midsole constructions create distinct roles.

The Superblast 3 places FF LEAP above FF BLAST PLUS. FF LEAP is ASICS’s lightest and most energetic current foam and is also used in the METASPEED racing family. The lower FF BLAST PLUS layer gives the tall platform a more conventional training-shoe foundation.

The Megablast uses full-length FF TURBO² without a plate. Rather than combining multiple layers or adding a structural element, it lets one energetic foam shape the entire ride. ASICS positions it for runners who want responsiveness and comfort without the stiffness associated with a plated shoe.

The Sonicblast combines FF TURBO² with FF BLAST MAX and places an ASTROPLATE between the cushioning layers. The plate is made from a flexible polymer rather than carbon fiber, but it still gives the shoe a more directed, speed-oriented construction than either unplated model.

Superblast 3: The Most Versatile Option

The Superblast 3 makes the most sense for runners who want one premium shoe to handle several different types of training.

Its top layer of FF LEAP brings technology from ASICS’s racing lineup into a non-plated trainer. Underneath, FF BLAST PLUS adds support and keeps the entire midsole from relying on an extremely soft race foam. ASICS also redesigned the forefoot trampoline pod to create a more energized toe-off.

That combination gives the Superblast 3 the broadest theoretical range of the three. It has enough cushioning for easy and long mileage, but its weight and race-derived upper foam also make it suitable for progression runs, steady efforts, and longer workouts.

It is not as purely soft as the Megablast or as mechanically directed as the Sonicblast. That middle ground is exactly what makes it the most logical choice for a runner who wants one premium trainer rather than several specialized shoes.

Best for: Daily mileage, long runs, progression runs, steady efforts, and runners building a simple one- or two-shoe rotation.

View the full ASICS Superblast 3 specifications on Cadence →

Megablast: The Bouncy, Unplated Choice

The Megablast is the simplest shoe in this comparison mechanically, but it may offer the most distinctive cushioning experience.

Its entire midsole is made from FF TURBO². There is no carbon plate, plastic plate, or firmer secondary foam layer. ASICS describes the model as one of its bounciest trainers and positions it across easy runs, long runs, tempo training, and—depending on the runner—some racing.

That makes the Megablast especially interesting for runners who want superfoam energy without the stiffness or directional sensation of a plated shoe. A full-length foam construction also allows the platform to flex and compress more naturally than the plate-supported Sonicblast.

The tradeoff is specialization. At $225, the Megablast is the most expensive of the three even though it does not contain a plate. Runners who prefer a more structured platform may also find the dual-layer Superblast 3 easier to use across very different paces.

Best for: Easy-to-moderate mileage, cushioned long runs, runners who prioritize bounce, and anyone who wants a premium superfoam trainer without a plate.

View the full ASICS Megablast specifications on Cadence →

Sonicblast: The Workout-Focused Option

The Sonicblast has the clearest speed-training identity.

Its upper layer of FF TURBO² provides the responsive portion of the platform, while FF BLAST MAX underneath adds softer daily-training cushioning. The ASTROPLATE sits within the foam to create a more propulsive transition through toe-off.

This does not make the Sonicblast a direct replacement for the carbon-plated METASPEED racing shoes. It is heavier, more training-oriented, and built to remain usable outside of race pace. But among these three BLAST models, it is the one most clearly designed around tempo runs, intervals, and faster sustained efforts.

It is also the least expensive at its $180 list price. That makes it a practical choice for a runner who already owns a comfortable daily trainer and wants a separate shoe for workouts without spending over $200.

The plate and dual-layer midsole make it less purely relaxed than the Megablast, while the extra structure gives it a more specific role than the Superblast 3.

Best for: Tempo runs, intervals, progression workouts, faster long runs, and runners adding a dedicated performance trainer to their rotation.

View the full ASICS Sonicblast specifications on Cadence →

Which Shoe Is Best for Easy Runs?

The Megablast is the most comfort-focused choice if you want an energetic but unplated platform. Its full-length FF TURBO² construction is intended to provide bounce across a wide range of paces without relying on a plate.

The Superblast 3 is the better choice when easy mileage is only one part of the shoe’s job. Its dual-layer midsole should offer a more balanced platform when alternating between relaxed runs and faster sessions.

The Sonicblast can handle daily running, but its ASTROPLATE and speed-focused geometry make it less necessary for runners who primarily run easily.

Easy-run pick: Megablast for maximum unplated bounce; Superblast 3 for broader versatility.

Which Shoe Is Best for Long Runs?

The Superblast 3 is the strongest overall long-run option because it combines a tall platform, relatively low weight, and a more controlled dual-foam construction. It should be especially useful for long runs that begin comfortably and finish at a quicker pace.

The Megablast is an appealing alternative for runners who want their long-run shoe to feel softer and less structured. Its full-length FF TURBO² platform is designed to maintain an energetic sensation across different speeds and distances.

The Sonicblast becomes more attractive when the long run contains sustained marathon-pace work, progression segments, or other faster sections.

Long-run pick: Superblast 3 for the widest range of long runs.

Which Shoe Is Best for Workouts?

The Sonicblast wins this category. It is the only shoe here with a propulsion plate, and ASICS specifically positions it toward tempo running and faster training.

The Superblast 3 remains a strong choice for threshold work, progression runs, and longer sessions where cushioning matters as much as speed. It may be the better option for runners who dislike the sensation of a plate.

The Megablast has enough responsive foam to handle faster running, but it is less specifically structured around speed than the Sonicblast.

Workout pick: Sonicblast.

For a broader explanation of when a separate workout shoe is useful, read Daily Trainer vs Tempo Shoe: Do You Really Need Both?

Can You Race in Them?

All three can potentially be used for road races, but none replaces ASICS’s top METASPEED models for runners specifically seeking a lightweight elite racing shoe.

The Sonicblast is the most obvious race-capable option because of its plate and speed-oriented construction. It may appeal to runners who prefer a more substantial and training-friendly platform than a dedicated carbon racer.

The Superblast 3 can work for runners who prefer an unplated shoe and value cushioning over minimum weight. The Megablast may also suit runners who want a flexible, highly cushioned race-day experience without a plate.

For ASICS’s dedicated racing choices, see our METASPEED Sky vs Edge vs Ray comparison.

Who Should Choose Each Shoe?

Choose the Superblast 3 if:

• You want one shoe for several types of training.
• You regularly combine easy runs, long runs, and moderate workouts.
• You want FF LEAP cushioning without a plate.
• You prefer a more balanced platform over maximum softness or added propulsion.

Choose the Megablast if:

• You want full-length superfoam cushioning.
• You dislike stiff or plated shoes.
• You prioritize bounce and comfort.
• You are comfortable paying more for a specialized premium trainer.

Choose the Sonicblast if:

• You want a dedicated shoe for workouts and faster long runs.
• You prefer the structure of a plate.
• You already own a separate easy-day trainer.
• You want the least expensive option in this comparison.

Final Verdict

The Superblast 3, Megablast, and Sonicblast overlap on paper, but each one emphasizes something different.

The Superblast 3 is the best overall option because it can cover the widest range of training without being locked into one purpose. The Megablast is the choice for runners who want a premium, highly energetic, unplated trainer. The Sonicblast is the best workout option and the easiest model to place into an existing shoe rotation.

For most runners choosing only one of the three, the Superblast 3 makes the most sense. For runners building a rotation, the decision becomes more specific: Megablast for comfortable bounce or Sonicblast for faster days.

Compare the Superblast 3, Megablast, and Sonicblast side by side on Cadence →

Sources

• ASICS SUPERBLAST 3 product page
• ASICS SUPERBLAST 3 launch announcement
• ASICS MEGABLAST product page
• ASICS MEGABLAST model guide
• ASICS SONICBLAST men’s product page
• ASICS SONICBLAST model guide