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On Court
This is where things get interesting, and where Mach III loyalists may want to pay close attention.
The Jet Mach 4 is a more
structured, cushioned shoe than the Mach III. The updated EVA foam delivers noticeably more padding underfoot, which will be welcome for players who spend two or three hours on court and need their feet to survive a long match. Babolat tour athlete Cam Norrie – who has worn Babolat rackets since age 12 and went fully head-to-toe with the brand in 2025 – was involved in testing the Jet Mach 4 during its development, with the brand actively gathering player feedback on feel and performance.
That increased cushioning, however, does come at a cost. Some players coming from the Mach III have noted the Jet Mach 4 feels heavier and slightly bulkier, one reviewer flagged it at around 370g (13oz) compared to the Mach III’s leaner 10.3oz. If the ultra-minimal, close-to-the-court feel of the Mach III was exactly what you loved, you may find the Mach 4 has shifted away from that territory. It’s still quick and agile – it’s just not quite as raw.
The good news is that for most competitive players, the balance the Mach 4 strikes is genuinely useful. The containment during lateral movements is solid, the forefoot energy return is noticeable, and the Michelin outsole grips without feeling sticky. One minor note flagged by testers: the outsole can be a touch noisy on hard courts. Not a dealbreaker, but worth knowing.
Stack height is moderately high for a speed shoe, though court feel remains present – you still sense the surface beneath you, which matters for timing and court awareness.
Who It’s For
The Jet Mach 4 is best suited to quick-moving, attack-minded players who want a shoe that moves with them rather than holding them in place. If you like to take the ball early, redirect aggressively, and stay on your front foot, this shoe’s forefoot setup rewards that style of play.
It is not the shoe for someone chasing maximum plush cushioning or the heaviest-duty lateral support on the market – the Babolat Propulse Fury line covers that ground better. And if you need a shoe that replicates the stripped-back minimalism of the Mach III specifically, temper your expectations: the Mach 4 is a more complete, well-rounded shoe, but it has moved away from pure featherweight simplicity.
For those who wanted a slightly more supportive and comfortable Mach III – players who loved the concept but wanted a bit more underfoot — the Mach 4 may actually be exactly what you were asking for.
Verdict
The Babolat Jet Mach 4 is a well-engineered speed shoe that delivers on traction, forefoot responsiveness, and durability. The Michelin outsole is reliable, the Matryx upper is supportive without being stiff, and the Blast Pad technology gives you something real on those explosive first steps.
The shift toward more cushioning and structure is the key consideration. It makes the Jet Mach 4 a better all-day shoe and more broadly accessible — but players who specifically loved the Mach III for its raw, minimal feel should try before they buy. That advice applies here more than usual: fit and feel are everything in a tennis shoe, and what the Jet Mach 4 offers is a more balanced proposition, not necessarily a like-for-like evolution.
For speed-focused players open to a slightly more complete package, it’s one of the better options on the market right now. It is actually one of the nicer shoes I have tried in recent times. I might still stick to my Yonex Eclipsion 5 as I need a bit more cushioning and support, but I like that they took a step towards a more comfortable shoe instead of the pretty raw feeling Mach 3. So in my book, it is a very good update. I’m keen to hear what you think in the comments and also, let me know what tennis shoes you use and why!