ASICS Novablast 4 Long Run Review: A Stack Monster Built for Big Miles

Introduction

Finding a non-plated shoe that genuinely holds up for two-and-a-half-hour efforts is harder than it sounds. Most cushioned trainers either feel squishy and unstable over long miles or work your lower legs too hard once you pass the two-hour mark. The ASICS Novablast 4 is designed to sit right in that gap, and this review is based on putting it through a long run of roughly 23 miles.

Why the Novablast 4 Stands Out Among Non-Plated Shoes

The headline feature is stack height. The Novablast 4 carries 41.5 mm of foam in the heel, making it one of the most stacked daily trainers available, without a plate underfoot. Brands like ASICS add plates into tall shoes such as the Saucony Endorphin Speed 4 or Nike SC Trainer V2 because this much cushion usually needs a plate to stay stable. The Novablast 4 manages that stability through sheer foam volume and a wide base instead.

That wide base matters more than you might expect. Whether you land on the heel, midfoot, or forefoot, the flared cushion gives you support wherever your foot strikes, so the shoe does not force you into one specific running style. That is a real difference from shoes like the Brooks Hyperion Max, which rewards midfoot to forefoot running, or the New Balance Rebel V3, whose flexible, lower-slung ride encourages a light, careful touch.

Compared with the Rebel V3’s 27.5 mm heel, the Novablast 4 carries nearly double the foam. For long runs that translates into far more protection, with much less strain on your calves and feet over extended time on your feet.

How It Performed Over 23 Miles

Over roughly three hours and twenty minutes on foot, the Novablast 4 delivered exactly what a long run shoe should: it stayed out of the way. The foam is firmer rather than plush, which helps it hold structure late into a run instead of feeling unstable. That slight firmness is a feature here, letting you keep turning the legs over past the two-hour mark rather than sinking into soft foam.

The firm ride also gave it a structured, almost plated-shoe feel, which meant it handled marathon pace pickups without complaint. In fact, this has real potential as a non-plated marathon shoe. For a sub-3:30 marathon effort, it is easy to imagine racing in this shoe, which is remarkable for a non-plated trainer.

The upper is comfortable and true to size, with room in the toe box without feeling sloppy. Unlike some firmer trainers that start to feel grating after two hours, this one stayed comfortable the whole way, and there was still enough cushion left that going further would not have been a problem.

Things to Consider Before Buying

The biggest weakness is wet-weather grip. Despite plenty of rubber on the outsole, traction on damp surfaces was noticeably poor, slipping more than most trainers. A stickier rubber compound would make a good shoe considerably better.

There is also a slight disconnect between heel and forefoot during the gait cycle, where the heel contacts first and the forefoot follows a beat later. Most runners will stop noticing, but it is worth knowing before buying.

Finally, this is a running shoe first and foremost. It is not built for walking around, errands, or casual everyday wear the way an On Cloudmonster is. If you want one shoe for both running and daily life, the Cloudmonster is the better all-rounder; if you want a shoe for three-hour efforts, the Novablast 4 wins.

How It Compares to the Alternatives

Against the On Cloudmonster, the Novablast 4 is the more serious, stable long run option, while the Cloudmonster has a more relaxed, fun ride and suits walking and everyday use better. The Saucony Triumph 20 remains a strong tall-stack, non-squishy long run pick in its own right, and the Puma Velocity Nitro 3 shares the same firm-but-protective character at a lower stack.

Firmer options like the Brooks Hyperion Max and Adidas Adizero SL are better saved for shorter, faster runs. Over two-plus hours, they simply do not offer enough protection. The Nike SC Trainer V2 and Saucony Endorphin Speed 4 add plates to handle their stack, but the Endorphin Speed 4 in particular felt less robust underfoot at the end of long efforts than this shoe does.

The ASICS Superblast sits a tier above the Novablast 4 in the lineup at $200, while the Novablast 4 comes in at $140, making it arguably the best value option for a marathon-capable trainer when plated racers can cost $275 or more.

Buying Advice

If your training centers on long runs and high mileage, especially two-hour-plus efforts in a marathon or half marathon block, the Novablast 4 is an easy recommendation. It is protective, stable, lightweight for its stack, and versatile enough for easy runs, stroller runs, and moderate pace work alike.

If you mostly run shorter, faster sessions in warmer months, a lower-stack shoe like the New Balance Rebel V4 or Hoka Mach 6 will feel nimbler and more rewarding. A sensible rotation pairs the Novablast 4 for long runs and daily miles with a faster lower-stack shoe for top-end work.

At $140, it punches well above its price, sitting alongside or above trainers costing $150 to $200. The main open question is long-term foam durability, but even with average durability the value is hard to argue with.

Conclusion

The ASICS Novablast 4 is an endurance monster: massively cushioned, stable from any foot strike, and comfortable enough that three hours on foot felt unremarkable. Poor wet grip and limited everyday-walkability are the trade-offs, but for long runs and marathon-paced efforts, it is one of the best non-plated options available.