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Megablast 1
★ 90d low Tracked daily
Plateless max-stack FF Turbo Squared super trainer.
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Today's tracked prices
- 01365RiderLIVE£183.27£229.00−20%
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Our verdict
The Asics Megablast is the brand's big, bouncy super trainer: a plateless max-stack running shoe that sits above the Superblast as the softer, taller, more cushioned option in the line. There is no carbon plate here, so the propulsion comes purely from a huge 46mm heel of FF Turbo Squared foam and the shape of the sole. That makes it a versatile do-everything trainer rather than a pure speed tool. It soaks up easy miles, holds a long run together, and still has enough energy return to lift into a steady tempo when you want it. At 230g it is not light for a trainer, and at £229 it is priced like a race shoe, so it asks a lot up front. But if you want one cushioned shoe that covers most of your week without a plate dictating the ride, the Megablast makes a strong case. We rate it as a premium daily-to-long-run trainer with real pop.
Key features
- FF Turbo Squared foamGives a deep, soft, springy ride that protects your legs on long runs and still returns energy when you push
- 46mm max stackDelivers proper max-cushion protection so tired legs and big weekly volume feel far less punishing
- Plateless designKeeps the transition natural and forgiving across paces instead of locking you into one aggressive rhythm
- 8mm drop with rockered geometryRolls you forward over the tall stack so you are not fighting the height at any pace
- Secure performance upperWraps the midfoot and locks the heel so your foot stays centred on the platform when the pace lifts
Who it suits
Who should buy it
- Neutral runners who want one premium cushioned shoe for most of their week
- Long-run and marathon-block training where deep leg protection matters
- Runners who prefer a natural, plateless ride over an aggressive carbon feel
- Higher-mileage runners chasing comfort that lasts to the end of the run
Good to know
Extra information
Fit & sizing
The Megablast runs true to size for most runners, so take your normal Asics length and you should be fine. The fit is secure through the midfoot with a moderate, performance-leaning width rather than a roomy daily-trainer last, so wide-footed runners may find it a touch snug across the forefoot and might prefer to try before buying. The heel hold is good and the collar locks the ankle without pinching. Because the stack is so tall, lace lockdown matters more than usual, and a runner-friendly heel-lock lacing helps keep your foot centred on the platform over longer efforts. If you are between sizes or plan to run in thicker winter socks, size up a half. Otherwise stick to true to size and expect a snug, race-day-ish fit that still works for daily volume.
Performance breakdown
Ride & feel
This is a soft, tall, rolling ride. The 46mm of FF Turbo Squared under the heel gives a deep, forgiving landing, and the 8mm drop plus the rockered geometry tips you forward so you are not fighting the stack. Without a plate the transition feels more natural and less aggressive than a carbon super trainer, so it flatters a range of paces rather than demanding one. Kept easy, it is plush and protective. Pick the pace up to a steady tempo and the foam gives a lively rebound that rewards a smooth midfoot roll. It is not a snappy, rigid ride and it will not turn over like a racer, but for a big cushioned shoe it stays surprisingly willing. Hold a rhythm and it comes alive.
Cushioning
Cushioning is the whole point of this shoe. With a 46mm heel and 38mm forefoot of FF Turbo Squared, the Megablast sits firmly in max-stack territory and delivers deep, soft protection that holds up as the miles pile on. This is the shoe you reach for when your legs are tired or the run is long, because the foam keeps taking the edge off long after a firmer trainer would start to feel harsh. The 8mm drop keeps the ride balanced rather than heel-heavy despite the height. It is soft without feeling dead or unstable underfoot, and the energy return is genuine enough that easy miles never feel like a slog. For long-run comfort and everyday leg protection, this is among the more generous trainers you can buy.
Stability
The Megablast is a neutral shoe and makes no stability claims, so committed overpronators who need medial support should look elsewhere. That said, a 46mm stack is a lot of foam to balance on, and softer max-stack shoes can feel tippy for some runners. Asics counters this with a reasonably wide, shaped platform and a secure midfoot that keeps your foot seated over the sole, so it feels more planted than the raw height suggests. Neutral runners with a stable gait will get on with it well, even at slower long-run paces. If you already find tall soft shoes wobbly, or you land heavily off-centre, this is not the shoe to fix that, and a lower or firmer trainer will feel more locked down.
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