Megablast 1 vs Superblast 3

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.

The Superblast 3 is the softest, bounciest Superblast yet, with a top layer of FF Leap over FF Blast Plus. On paper that means plenty of cushioning for not much weight, at 235g with no plate, and Ben Parkes says it may be the most comfortable long-run shoe they've worn.

What you give up is steadiness. Several reviewers found it wobblier on corners and as their legs tired, and one UK reviewer who preferred the firmer Superblast 2 now sends people to the Megablast instead. Most reviews still rank the Superblast 3 among the best super trainers you can buy, and one lab rated its grip the best it had tested.

We'd pick it as a marathon-training and long-run shoe for neutral runners who want a soft, lively ride. If you like a firm, planted shoe, it probably isn't for you. At £200 RRP it's one of the dearest trainers Asics makes, so check the price table before you buy.