Sonicblast 2 vs Superblast 3

Fordy Runs calls it a big step up from the first version, and the spec sheet backs that up. The Sonicblast 2 keeps the layout of the first version (FF Turbo Squared on top, FF Blast Max underneath, a Pebax plate between them) but the plate is now forked, and reviewers say it's noticeably lighter and bouncier than before. It's a plated super trainer for tempo sessions, marathon-pace long runs and the odd race, not a soft shoe for recovery days.

Doctors of Running graded it A-, and another review's three testers liked the ride too, though all of them found it firm at easy pace. The catch is price. At £170 RRP it sits right beside the Superblast 3, which is still the better choice if you want one shoe for easy days as well as fast ones. If most of your running is at tempo or marathon pace, the Sonicblast is the sharper of the two, and it gets easier to recommend once it drops below full price in the table.

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.