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ASICS has spent half a century building GEL-cushioned shoes for tennis, running and court sports — but the Sonicsmash FF is something different: the brand’s first padel shoe engineered specifically for speed rather than adapted from an existing last. Released for the 2026 season and aimed squarely at attacking players who live at the net, it swaps ASICS’s familiar GEL tech for a lighter FLYTEFOAM™ setup built to get you moving faster between points. We’ve gone through the specs, the on-court claims, and how it stacks up against the padel shoes UK players already rate highly.
At a Glance
- Price: £119.99 at Decathlon UK
- Level: Advanced, built for offensive players
- Surface: Indoor and outdoor courts
- Outsole: X-GROOVE™ herringbone, padel-specific pattern
- Midsole: FLYTEFOAM™ with SPEEDTRUSS™ technology
- Upper: Breathable mesh, low-cut silhouette
- Closure: Traditional lace-up
- Insole: Removable
- Foot width: Medium
- Sizes: UK 6–10.5 (EU 40–46)
- Colourway tested: Blue/Green
- Retailer: Decathlon UK (sold and shipped by Decathlon directly)
Who It’s For
The Sonicsmash FF is pitched at intermediate-to-advanced players who play an attacking, front-of-court game — the kind of player who’s constantly splitting steps, closing down volleys and recovering to the middle after a smash. ASICS lists it as an “advanced” level shoe, and the lightweight, lower-cushion-stack build backs that up: this isn’t a plush, forgiving shoe for someone easing into the sport, it’s built for players who already move well and want a shoe that gets out of the way rather than one that does the work for them. Players with wider feet should also note Decathlon lists the fit as “medium” width, so it’s worth trying a half-size up if you’re between sizes. Beginners who need more underfoot support and a more forgiving ride are better served by something like the Kuikma PS Pro or adidas Courtquick.
On-Court Performance and Feel
The headline technology is FLYTEFOAM™, ASICS’s long-running running-shoe midsole compound, paired here with SPEEDTRUSS™ — a design feature ASICS says sharpens energy return through fast, repeated direction changes rather than a single big stride. On padel’s short, sharp movement patterns — split-step, lateral shuffle, quick recovery — that combination is designed to feel more reactive underfoot than a traditional cushioned tennis shoe, without tipping into the harsh, low-feedback ride that some ultra-light court shoes have.
The outsole uses ASICS’s X-GROOVE herringbone pattern, which is genuinely padel-specific rather than a tennis sole with a new name stamped on it — herringbone tread is the standard choice for artificial turf and sanded synthetic courts because it sheds grit rather than packing it into the grooves, which matters on both UK indoor clubs and outdoor courts. ASICS also builds in two circular pivot points at the front of the shoe, designed to let you rotate cleanly through smashes and overheads without the sole fighting your foot.
The upper is a breathable mesh rather than the synthetic leather-style wrap you get on more stability-focused shoes like the Bullpadel Vertex Vibram — good news for warm indoor clubs and summer outdoor sessions, though it does mean less lateral containment than a reinforced upper if you’re heavy on your edges during hard cutting movements. The insole is removable, so players who use custom orthotics or a footbed like SofSole can swap it out, and the traditional lace-up closure keeps fit adjustment straightforward rather than relying on a strap or dial system. Buying through Decathlon also means the shoe comes with a 2-year warranty as standard, plus 365 days to return if you’re a Decathlon member — useful reassurance on a brand-new model with a limited UK review history so far.
Pros and Cons
Pros
- Genuinely padel-specific engineering (FLYTEFOAM™ + SPEEDTRUSS™), not a rebadged tennis shoe
- X-GROOVE herringbone outsole suited to both indoor and outdoor UK courts
- Breathable mesh upper keeps feet cooler than leather-style alternatives
- Removable insole for players who use custom footbeds
- Backed by Decathlon’s 2-year warranty and 365-day member returns
Cons
- Sizing tops out at UK 10.5 with no half sizes below UK 8 — check the size guide carefully
- Lightweight build favours speed over the maximum stability a heavier, more structured shoe offers
- Mesh upper isn’t waterproof, so it’s not the best pick for damp outdoor courts
- Only one colourway (Blue/Green) currently listed at Decathlon UK
- As a brand-new model, real-world durability feedback is still limited (7 reviews on Decathlon at time of writing)
How It Compares
At £119.99, the Sonicsmash FF sits in the upper-mid tier of padel shoes — pricier than value options like the adidas Courtquick (£70) or Kuikma PS Pro (£84.99), and roughly in line with the HEAD Sprint Pro 4.0 worn by Arturo Coello and Paula Josemária. Where it differs from the HEAD, and from stability-first designs like the Bullpadel Vertex Vibram, is intent: the Sonicsmash FF leans into speed and low weight rather than maximum lateral lockdown — similar in spirit to the Babolat Jet Viva‘s lightweight positioning, but built around ASICS’s own running-derived cushioning rather than Babolat’s Michelin sole partnership.
Whether that’s worth the premium over the Kuikma or adidas options comes down to how much you value ASICS’s specific cushioning feel and fit — players already loyal to ASICS running or tennis shoes will likely find the sizing and underfoot sensation familiar, which is a genuine point in its favour if you already know the brand suits your foot shape. If you’re still working out which category of shoe suits your game, our Best Padel Shoes 2026 roundup breaks down stability, speed and value picks side by side.
Verdict
The Sonicsmash FF is a credible first padel-specific shoe from a brand that’s spent decades building court footwear for tennis — it isn’t a repurposed running shoe or a tennis shoe in a new box, and the FLYTEFOAM™/SPEEDTRUSS™ combination gives it a distinct, speed-first identity in a market that’s increasingly crowded with stability-focused options. It’s best suited to advanced, attacking players who already move well and want a shoe that keeps up rather than compensates for technique. If you want maximum lateral support instead, look at the Bullpadel Vertex Vibram or HEAD Sprint Pro 4.0; if budget matters more than cutting-edge cushioning tech, the Kuikma PS Pro or adidas Courtquick will save you £30–£50 with fewer compromises than you might expect.
FAQ
Is the ASICS Sonicsmash FF a padel-specific shoe, or a rebranded tennis shoe?
It’s built specifically for padel. ASICS designed the FLYTEFOAM™/SPEEDTRUSS™ midsole and X-GROOVE herringbone outsole around padel’s shorter, sharper movement patterns rather than adapting an existing tennis last.
What size should I buy?
Decathlon lists UK 6, 7, 8, 8.5, 9, 10 and 10.5 (EU 40–46) for this colourway — note there’s no half size below UK 8, so if you’re between sizes at the lower end, check Decathlon’s size guide before ordering.
Is the Sonicsmash FF suitable for beginners?
Not ideally. ASICS positions it as an advanced-level shoe for offensive players, with a lighter, less cushioned build than beginner-friendly options. Newer players will likely get more support and a more forgiving ride from the Kuikma PS Pro or adidas Courtquick.
Can I use it on outdoor courts?
Yes — Decathlon lists it for both indoor and outdoor play, and the X-GROOVE herringbone outsole is the pattern typically recommended for artificial turf and sanded synthetic surfaces. Just bear in mind the mesh upper isn’t waterproof, so it’s not the best choice for playing in persistent rain.
What’s the warranty and returns policy?
Buying via Decathlon UK includes the retailer’s standard 2-year warranty, and Decathlon members get 365 days to return the shoes if they don’t work out.
Check Current Price at Decathlon UK →
Prices and stock correct at time of writing — always check current price and availability at the retailer before buying.
