AI generated illustrative image created for editorial use in the FatMarathoner Kiprun running shoes article. It is not an actual photograph of a Kiprun product.
Nobody outside the specialist running world had heard of Kiprun six months ago. Then New Balance filed a federal lawsuit in Boston on Tuesday and turned Decathlon’s fledgling running brand into the most searched name in running shoes overnight. The lawsuit did more for Kiprun’s awareness in America than any marketing campaign Decathlon could have funded. The question runners are actually asking now is not about trademark law. It’s simpler: who are these people, are their shoes any good, and is it safe to buy a pair?
Kiprun: The Brand at a Glance
- Parent company: Decathlon, the world’s largest sporting goods retailer
- Stores globally: 1,902 across 82 countries
- US launch: April 2026, via kiprun.com and select specialty retailers including Running Warehouse
- Brand ambassador: Jimmy Gressier, 2025 World 10,000m champion
- Flagship racer: Kipstorm Elite, $255, carbon-plated
- Legal status: Named defendant in New Balance v. Decathlon, filed September 16 2026 in the US District Court for the District of Massachusetts
Who Is Kiprun and Why Is Everyone Suddenly Talking About It?
Kiprun is Decathlon’s standalone running brand, spun out of its in-house Kalenji label and repositioned as a performance-first label with its own identity, its own retail presence and its own athlete roster. The rebrand happened in 2025. The logo at the centre of all this is the one Decathlon introduced at that point: an angular shape it describes as a stylised K, drawn from the image of starting blocks on a track.
The problem, as New Balance sees it, is that the mirrored version of that K looks like its own N. And Kiprun uses both orientations. Look at the shoes in person and on marketing, and you will see what the complaint means. New Balance put it plainly in court documents: the mirrored version is “unmistakably an N.” It put Decathlon on written notice in January. Decathlon declined to change the logo. Three months later, Kiprun went on sale in the United States.
That sequence is now important because it removes any accidental-infringement argument Decathlon might have leaned on.
Every Kiprun Shoe Named in the New Balance Lawsuit
The complaint covers eight models currently sold to American customers. Here are the ones with confirmed pricing from Kiprun’s US site and authorised retailers at the time of filing.
| Model | Price (USD) | Category | Notable Feature |
|---|---|---|---|
| Kipsummit | $130 | Daily trainer | Entry-level performance, Kiprun’s most accessible shoe |
| Kipstorm Elite | $255 | Carbon-plated racer | Direct competitor to NB FuelCell SuperComp Elite v4 at $5 less |
| KD900X Lab | Not listed | Carbon-plated racer | Race shoe worn by Jimmy Gressier at world level |
| Kipstorm Lab | $350 | Carbon-plated racer | Top of the Kiprun performance range |
Four further models are named in the complaint but have not had pricing confirmed in available US retail listings. Pricing and availability may shift quickly if the court issues an interim injunction.
What New Balance’s Lawsuit Actually Means for Runners
Trademark infringement cases are decided on one thing: whether buyers are likely to be confused. Not whether two logos match on a lightbox comparison. Not what a designer intended. Whether an ordinary consumer picking up a shoe in a store would associate it with the wrong brand.
That standard is why the social media content in this filing matters so much. New Balance has included YouTube videos, Instagram reels and Reddit threads in which runners look at Kiprun shoes and call the logo an N. Unprompted. Josh Gerben, the trademark attorney whose firm published the full complaint, noted that building confusion evidence is normally the slow and expensive part of this kind of litigation, and that having runners do it organically puts New Balance in an unusually strong position heading into any trial.
New Balance’s N registration dates to 1976. Several of its registrations are now incontestable, which meaningfully narrows the arguments Decathlon can make. Michael Kors and Nautica both settled with New Balance over the same letter. A Chinese court ordered local shoemakers to pay New Balance $1.5 million in 2017 in a related dispute.
Gerben puts the cost of carrying a case through discovery and into a courtroom at $1 million to $5 million a side. That is usually what pushes both parties toward a deal rather than a verdict. A negotiated settlement, almost certainly involving a logo redesign and possibly a financial payment, is the most likely outcome here.
What Happens to Your Kiprun Shoes If There Is a Recall?
If you already own a Kiprun shoe, here is what you need to know. New Balance is asking the court to order that infringing stock be recalled and destroyed. That request applies to retailer and warehouse inventory, not to shoes already in customers’ hands. You will not be asked to return a pair you have already bought and worn. However, if the court grants an interim injunction before a settlement or trial, Kiprun shoes could be pulled from sale in the US within weeks, which would affect warranty claims, returns and spare parts availability. Watch for updates from the retailer you bought through.
The more realistic near-term scenario is that Decathlon agrees to modify the logo and the shoes already in circulation are grandfathered. That is roughly how these things tend to resolve. But until there is a court order, a settlement announcement or a formal response from Decathlon, the situation is genuinely open.
Should You Buy Kiprun Running Shoes Right Now?
The shoes are real. Kiprun is not a pop-up brand that appeared overnight. It is Decathlon’s serious attempt at a premium running label, backed by one of the world’s largest retailers and worn at world championship level by Jimmy Gressier. The Kipstorm Elite at $255 is a carbon-plated racer that sits directly alongside New Balance’s FuelCell SuperComp Elite v4 on specialty running retailer shelves. That is not a coincidence and it is not cheap marketing. These are built to compete.
If you are outside the United States, this lawsuit has no immediate bearing on you at all. Kiprun is sold widely across Europe and Asia through Decathlon stores and online. The legal dispute is confined to the US market.
If you are in the US and you are considering a Kiprun shoe, the sensible read is this: the shoes are not going to disappear from your feet. But availability in America may become unpredictable in the next few months while the legal situation plays out. If you are buying for a spring 2027 race, wait and see how this settles. If you want the Kipstorm Elite now and it is in stock at your preferred retailer, the product itself is not the problem.
The Verdict
Kiprun built a legitimate case for entering the American market. Competitive pricing, a world champion on the roster and a carbon racer that belongs on the same shelf as the big names. The lawsuit does not change the quality of the shoes. It does change the business risk for Decathlon in its most ambitious new market, and it creates short-term uncertainty for anyone buying in the US right now. A logo redesign and a settlement are the most probable outcomes. The brand will survive this. Whether it survives with the same momentum it was building before Tuesday is a different question.