Shared Suppliers and Lookalike Kits: The Hidden Corner of Football's Kit Market

That night at Hoa Xuan, I stood under stand B, where the sea wind blew hard enough to make people pull up their collars. The two teams walked out. The first thing I saw was the fabric - the same weave, the same shade of blue sinking under the floodlights, the same seams running along the shoulders in a design pattern so familiar that I thought I had already watched this match. Only when the two rows of players lined up for the anthem did I notice the badges on their chests. One was the home team. The other was the visitors. Two different shirts, identical in almost everything else. I stood there, amid the drums of the stand, asking myself a question I have not fully answered for years: since when did football start wearing the same shirt? And when I slowed down enough to listen, I realized the question was not on the pitch. It was in the rooms where people sign contracts, in the factories where people weave fabric, in the exclusivity clauses that no stand has ever applauded. The pitch never lies, we have simply not been slow enough to hear it. And sometimes, what the pitch whispers is not about a goal, but about the fabric on a player's back. Modern football runs on contracts before it runs on passes. Every club, every federation, from the moment it is an idea on paper, has had to answer a financial question: who will dress us? The kit supplier is one of the first and most enduring commercial partners of a team. They pay to put their logo on the chest, to tell their brand story through color and material, to travel with the team through seasons of ups and downs. But behind that logo is an economic machine running on its own logic - a logic the fans in the stands rarely get to hear. I started noticing this years ago, watching a domestic league match, when I realized three teams in the same round wore shirts with nearly identical patterns. At first I thought it was coincidence. Then I started keeping track. In the notebook I always carry, I sketched every shirt, every collar line, every shoulder pattern, every color combination. After a few seasons, a pattern emerged so clearly that I could not ignore it: most of these lookalike shirts came out of the same handful of factories, under the same handful of design templates, differing only in the final coat of paint - the colors and the badge. That was when I understood that the story of football kits is not a story about beauty. It is a story about supply chains. The global sportswear industry has only a few giants holding most of the market: names any football fan knows by heart, from Nike, Adidas, Puma, to newer brands like New Balance and Castore. They sign contracts with hundreds of clubs and federations worldwide. With such a huge number of partners, creating a separate, unique design for every team every season is almost impossible in terms of cost. Instead, they use a template system, then customize colors, patterns, and logo placement for each client. This system is nothing new. For decades, manufacturers shared shirt patterns among teams in the same season, especially in smaller, less famous markets. What changed in recent decades is speed and scale. As football's market went global, as every match was broadcast across five continents, as fans could compare hundreds of shirts with a single screen swipe, repetition became more visible than ever. And precisely when it became most visible, people started asking questions. At the heart of this story is a concept the business world calls the exclusivity clause. When a club signs with a supplier, they usually expect something more than money. They expect exclusivity - that the supplier will not use the same design for a rival, that their shirt will not appear on the back of another team in the same season. That is a reasonable expectation. A club paying millions does not just buy fabric, it buys difference. But how that exclusivity clause works in practice is another story. I spent many nights rereading club and supplier statements, comparing them with the actual shirts on the pitch. The gap between promise and product is sometimes wide enough to make one think. There are cases where designs are so similar that coincidence is impossible, yet no one speaks up. There are other cases where a brand leader publicly says they were lied to about supplier exclusivity - an accusation that forces one to re-examine the entire supply chain. Such accusations are rarely fully verified, but their existence alone shows this is not a small matter. Imagine a fabric factory somewhere, serving four or five major brands at once. The same production line, the same cutting die, the same quality standards. That factory has an incentive to optimize production, meaning making as many identical patterns as possible, because every design change costs time and money. The brands, in turn, have an incentive to order early, order fast, and accept proven best-selling designs rather than gamble on something new. When all these incentives add up, the result is a market where products increasingly resemble each other, even when they come from supposedly rival companies. This is where I want to pause a little longer, because it is often overlooked. Fans tend to think of sportswear brands as autonomous entities, each giant with its own style, its own signature. But seen from the supply-chain angle, they share a great deal. They share factories, share raw-material suppliers, share design trends, share the same market research groups and the same forecasts of what will sell. In a market where everyone reads the same data, everyone targets the same customer group, everyone is under pressure to launch on time, convergence in design is nearly inevitable. I remember sitting for a long time before a photo of four match shirts from four different clubs, placed side by side. Same season. Same collar style. Same subtle pattern on the fabric. Only the color and the badge differ. Without looking closely, one might think they are four versions of the same product. And technically, they would not be entirely wrong. Every contract is a promise, every promise is a possible sorrow. The promise here is design exclusivity. The sorrow is when the shirt takes the pitch and looks exactly like the opponent's shirt. But if we stop at calling for brands to be more creative, we miss the hardest part of the story. Because design convergence is not just an aesthetic issue. It is an economic one. A completely new, untested design carries commercial risk. If it does not sell, the brand loses money, time, and credibility with investors. Meanwhile, a design proven successful in another market can be replicated at far lower cost and far higher probability of success. This is the logic of every consumer industry: when scale is large enough, safety beats adventure. And this is where I must tell another story, one I believe is the true heart of the matter. On a late-season afternoon, I sat in a familiar cafe on Bach Dang street in Da Nang, listening to two friends argue about a newly released match shirt. One said it was beautiful. The other said it resembled a shirt from another club he had seen in a European league. They argued long and hard, and in the end no one won. But what I remember most is not the outcome. What I remember most is the moment one of them asked: so who actually made this shirt? That question silenced me. Because the answer is usually not on the brand printed across the chest. It is in an unnamed factory, in a supply chain fans never see, in contracts no one publishes. People remember the name of the scorer, but I remember his run ten seconds before. In this story, the run ten seconds before is the entire supply chain behind the shirt - the part the naked eye misses but which decides everything. What is noteworthy is that brands often respond to lookalike accusations not by denying, but by stressing differences in material and technology. They say that even if designs look alike, the fabric formula, sweat-wicking ability, elasticity, and weight are entirely different. Technically, this may be true. But seen from the stands, fans do not buy fabric. They buy image. And when images look alike, technical differences become invisible, like a beautiful number buried under a layer of meaning the eye cannot read. Here, I see a strange parallel between how sportswear brands handle public-relations crises and how football clubs handle dressing-room crises. One side chooses confrontation, publicly saying we were lied to, we were treated unfairly. The other chooses de-escalation, stressing effort, stressing expertise, and trying to redirect the narrative from who copied whom to how hard we worked. Both strategies have their reasons. But both reflect one thing: when the problem lies in the supply chain, no one wants to be first to admit they do not control the whole story. There is a truth I think we need to face calmly. Our memory of unique, irreplaceable football shirts is highly selective. We remember legendary shirts, designs that lasted through the years, patterns tied to an unforgettable moment. We do not remember the thousands of ordinary shirts that were born and vanished without a trace. This means that when we complain that modern football has lost its character, we are comparing the present with a past painted by our own memory. The pitch never lies, we have simply not been slow enough to hear it. And memory, sometimes, is the most sophisticated liar of all. But this does not mean we should accept convergence as an irresistible law. On the contrary. Understanding that lookalikes come from supply chains, economies of scale, and template systems does not reduce brands' responsibility. It makes that responsibility clearer. Because if we know difference is possible, just more expensive, then the question is no longer why shirts look alike, but why brands choose not to pay for difference. This is the counterintuitive point I want to stress. Fans often blame designers' laziness. But seen economically, brands are not lazy. They are behaving rationally within a system that rewards safety. They share suppliers because it cuts costs. They reuse templates because it cuts risk. They order early because it ensures stock on time. Each individual decision is rational. Only when added up do they create a market where everything looks like everything else. This is a collective tragedy of rationality - where no one intentionally harms anyone, yet the end result harms everyone. The same holds for clubs. When a team signs with a supplier, they often lack the power to negotiate absolute exclusivity, unless they are top global clubs. A small club in a small league, with a limited budget, usually has to accept what the supplier offers. They may be promised an exclusive design, but how that promise is enforced depends on the supplier's goodwill, and on the club's ability to monitor and enforce the contract. In most cases, neither side has an incentive to bring this into the light. And this is where the story becomes more interesting than ever. Because what is happening in the sportswear industry reflects a larger pattern of modern football: the concentration of power in a few entities, and the dependence of the rest on those entities. Like a league where a few clubs hold most of the resources, the kit market also has a few suppliers holding most of the share. And when power concentrates, the ability of those below to demand difference also shrinks. Lookalike shirts are not just a design issue. They are a sign of a power structure. I think about this every time I watch a match and notice two teams wearing nearly identical shirts. I no longer see coincidence. I see the result of a chain of economic decisions no one in the stands ever gets told. I see the factory, I see the contract, I see the negotiations in closed rooms, I see designers forced to work within a framework set by others. And amid all of it, I see the player - wearing that shirt, running on the pitch, sweating for it, and perhaps never knowing that the shirt on his back was born from a supply chain he does not control. The heart still beats, even when the stands no longer applaud. I wrote that for the players who stay behind after a defeat. But tonight, I write it for the shirts. Because some things on the pitch also beat quietly like a heart, also endure like a person, but are never named. Lookalike shirts are one of those things. They are the result of a system, and also the witness of a system. When we look at them, we look at modern football - not in its glamorous part, but in its silent foundation. So what can we do about this? I do not think the answer lies in boycotting brands, or in demanding the impossible. The answer lies in understanding. When we understand that design convergence comes from supply chains and economies of scale, we can demand more intelligently. We can ask clubs to disclose exclusivity clauses in kit contracts. We can ask brands to be more transparent about production. We can recognize and honor designers who dare to take risks, to create difference, even if it costs more. And above all, we can keep remembering that every shirt on the pitch is the result of hundreds of decisions the naked eye cannot see, and that seeing them is the first step to changing them. The glory of the loser is a light only those who stay can pick up. In this story, the loser is not a player, but the idea of uniqueness. And those who stay, perhaps, are us - the fans still sitting in the stands, still noticing every seam on a shoulder, still asking questions even when no one answers. The light we pick up is not the light of a beautiful shirt. It is the light of understanding - of how football operates behind what we see. The night at Hoa Xuan ended long ago. The home team won, the away team lost, the stands emptied into the sound of motorbikes. But I stayed behind, looking at the two shirts hung on the fence, wondering about the next season. Will I again see two teams in identical shirts? Will I again have to stop to tell the badges apart? I do not know. But I know that every time it happens, I will no longer call it coincidence. I will call it by its real name: a product of a supply chain, a trace of a power structure, a whisper within the noisy whole of modern football. We never touch the ball, but the ball always touches us. And sometimes, the ball touches us through a piece of fabric. Through a seam. Through a contract we do not read. Modern football is telling a new story, and that story does not only happen on the pitch. It happens in places we never thought to look. The question for all of us is: do we have the patience to listen, the slowness to understand, and the courage to ask about what stands behind the shirt we love?