Novablast 5 vs Novablast 6

The Novablast 5 is Asics at its most fun: a bouncy, do-it-all daily training shoe that turns easy miles into something you actually look forward to. It sits in the high-stack daily trainer bracket, with an 8mm drop and a springy ride that rewards a relaxed cadence. At 135 pounds RRP and around 255g it is not the lightest in its class, but the energy you get back more than pays for the weight on everyday runs. This is a versatile running shoe rather than a one-trick pony. It will cover recovery jogs, steady long runs and the odd faster session without complaint, even if it is happiest cruising. If you want something firmer and more locked-down for tempo work, the Asics Superblast 2 is the pricier, sharper sibling. But for most runners after one shoe to carry the bulk of their training, the Novablast 5 is an easy shoe to recommend. We rate it as one of the most enjoyable daily trainers you can buy.

The big change for version 6 is a small pod of FF Turbo Squared foam under the forefoot, set into an FF Blast Max midsole. It gives the Novablast a quicker toe-off, and most reviewers think it's the better shoe for it. Ben Parkes rates it the best Novablast so far. Fordy Runs likes the changes too, but wonders whether the series has swapped the fun of the early versions for something dependable and a little safe. One reviewer liked it much less, finding the heel dull and the transition slappy.

This is a daily training shoe for easy miles and long runs, and it can still pick up the pace for strides or a steady tempo. Both UK reviewers share one worry: the Novablast 5 lost its bounce over time for plenty of runners, and most of this midsole is the same foam. At £140 RRP it costs £5 more than the version it replaces, and the older shoe is worth a look while stock lasts.