Novablast 4 vs Wave Sky 9

The Asics Novablast 4 is a bouncy, high-stack daily training shoe built to make easy and steady miles feel fun. It sits in the cushioned-but-springy corner of the running shoe market, the sort of trainer you reach for when you want soft landings without a dead, sink-in feel. At 257g it is not the lightest max-cushion shoe out there, but the energetic midsole hides the weight well once you are moving. The 8mm drop keeps you in a slightly lower, more natural position than a traditional 10mm trainer, so midfoot and forefoot strikers tend to get on with it quickly. This is a do-most-things daily trainer rather than a specialist. It will happily soak up recovery jogs, cover a long run, and still has enough pop to enjoy the odd faster stretch. If you want one cushioned shoe for the bulk of your week, the Novablast 4 is an easy shoe to live with. The newer Novablast 5 refines the same recipe.

The Wave Sky 9 is Mizuno's plush, max-cushion daily trainer, a soft running shoe built to soak up easy miles and long runs rather than chase pace. With 44.3mm of stack under the heel and a moderate 6.2mm drop, it plants a deep, protective platform between your legs and the road, and that is exactly where it does its best work. At 295g it is a substantial shoe, so nobody will mistake it for a tempo tool. That heft is the trade-off for the comfort. If you want a neutral cushioned trainer to protect tired legs across a marathon build, or a plush recovery-day cruiser, it earns its place. If you already run in the Asics Gel Nimbus 28 or another pillowy daily trainer, the Wave Sky 9 sits squarely in that same comfort-first bracket, and we rate it as an honest, dependable option rather than a flashy one.