Running Shoes

Hoka Celo X1 Review: A Seriously Good Super Shoe With an AlphaFly Feel

After 50km of marathon training, track sessions and a 10K race, here is how the Celo X1 performs, where it fits in Hoka's racing line-up, and who should buy it.

Hoka Celo X1 racing shoe with black knit upper and thick foam midsole on concrete

Introduction

The Hoka Celo X1 is Hoka’s latest super shoe, and it arrives with a clear mission: bring the tall, bouncy, toe-tipping feel of a marathon flagship racer to the brand’s line-up. Over the past month it has been put through marathon training runs, a track session and a 10K race, and it has come away from all of them looking like a very serious racing option.

This is not a cheap shoe. It sits at the top end of Hoka’s racing collection, above the Rocket X2 and just below the price of the Nike Alphafly 3. The question is whether the ride justifies the price tag. On the evidence so far, the answer leans firmly yes.

Price, Weight and Stack Height

In the UK the Celo X1 costs £250, and in the US it is $270. That makes it more expensive than the Hoka Rocket X2, cheaper than the Alphafly 3, but not as affordable as something like the Nike Vaporfly 3. In other words, it carries the full super shoe price tag, so it is not an impulse purchase.

The geometry is marathon-racer scale: a 7mm drop with 40mm of stack at the heel and 33mm at the forefoot, giving it a stature very similar to the Alphafly 3. A UK size 8 weighs 242g, which makes it heavier than both the Alphafly 3 and the Rocket X2. This is not the lightest super shoe available, but the extra grams appear to buy comfort and durability rather than sluggishness.

The Midsole: Dual-Density with a Winged Plate

Underfoot, the Celo X1 uses a dual-density midsole similar in concept to the Rocket X2. The top layer is a softer foam that provides comfort, below that sits a winged nylon plate for a more aggressive, propulsive feel, and beneath the plate is a firmer foam layer that helps generate power when you run faster.

In practice, this combination produces a noticeably bouncy ride. You feel it working up through your legs, and at quicker paces the shoe genuinely comes to life. It also gets you up onto your toes quickly through transitions, helped by Hoka’s meta rocker geometry.

Runner striding at speed through a city park on a race-day morning

One thing worth flagging honestly: the bounce is noticeable enough that it registered a little in the knees on some sessions. It was never uncomfortable or damaging, and no run ended with legs feeling wrecked, but runners who dislike a very bouncy ride should be aware of that character.

Fit and Upper

Hoka has chosen a knit upper rather than the mesh used on models like the Celo Road and Rocket X2, paired with thin, flat laces to shave weight, a stretchy tongue, and padding in the heel collar to prevent rubbing.

Fit runs true to size, at least for the tested UK 8, but this is a narrow shoe from the heel through the midfoot. It does open up nicely in the toe box with good space up front and no uncomfortable rubbing, but runners with wider feet should think carefully before committing.

Racing shoe with black knit upper on a runner's foot ready for a fast session

The stiff, structured upper has one real downside: it is genuinely difficult to get the shoe on quickly. It does not slip on easily, which matters if you are rushing at a race start. Once on, the lockdown is secure and the laces hold well, though they do take some effort to cinch properly.

Outsole and Durability

The rubber outsole design is reminiscent of the Adidas Adizero Metaspeed Sky series, with generous rubber coverage across the forefoot, less at the heel, and some exposed foam. Cutouts from the midsole into the outsole help reduce weight.

After 50km of running, there are no worrying signs of wear and grip has been dependable on dry roads and park paths alike. The one small quirk: a rock got lodged in one of the outsole cutouts on one run. It caused no real problems, but it is worth knowing the open design can catch debris.

Close-up of the rubber outsole and foam midsole of a racing shoe

The overall impression is that there is enough rubber here to race long and even handle some longer training sessions, which is more than can be said for some fragile super shoes.

Race Test: First 10K

The first race in the Celo X1 was a 10K event: six laps of a one-mile park loop with small climbs and descents in near-ideal racing conditions, run at around 6:30 per mile pace. The experience reinforced two things.

First, the shoe is still awkward to get on quickly, and the thin laces take work to get a proper lockdown. Second, once running, none of that matters. The bounce carried through the entire race, the toe-tipping feel made the transitions feel quick and smooth, and the hilly sections of the course posed no problems at all.

Runner racing a 10K event on a flat park loop under clear skies

The verdict from racing is that it may be best suited to longer distances, but there is nothing to suggest it does not work at shorter race paces too. It handled 10K effort comfortably and should have the capability to run a range of distances.

Buying Advice: Who Should Buy the Celo X1?

This is the closest thing to an Alphafly experience many runners will find outside that shoe itself: the tall stack, the bouncy ride, the feeling of being tipped onto your toes. It pairs that with an outsole that looks built to last, making it a credible option for marathon training and racing rather than a pure one-race shoe.

Hoka now seems to be building its own Vaporfly/Alphafly style duo: the Rocket X2 as the more grounded, responsive option for shorter distances up to the half marathon, and the Celo X1 as the taller, more cushioned racer with longer distances in mind. If you have been unable to get hold of an Alphafly 3, or want a similar feel at your local price point, the Celo X1 is a very sensible alternative. Runners with wide feet or those who hate a bouncy ride should look elsewhere.

Conclusion

The Celo X1 is a seriously good super shoe. It hits every note you want from the category: light enough to race, a genuinely fun bouncy ride, quick transitions, a comfortable fit once on the foot, and an outsole that inspires confidence over long distances. The awkward entry, thin laces, narrow midfoot fit and knee-tingling bounce are real quirks, but none of them overshadow what is on offer. At this price it is a considered purchase, yet for runners chasing an Alphafly-style experience, it stands among the best-tested racing shoes and looks set to become a core part of Hoka’s racing line-up.

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