Soldiers equipped with it would be invisible to those sensors
In the long human struggle to survive the weapons we invent, a Spanish company has answered the drone age with a poncho — a garment that makes soldiers thermally invisible to the sensors now hunting them across Ukrainian fields. Fecsa's Velum, already distributed to Ukrainian forces in the hundreds of thousands, represents a quiet but profound shift: the advantage of thermal sight, once reserved for the most powerful armies, has become so widespread that defeating it is now a matter of survival rather than strategy. It is a reminder that every dominant technology in war eventually summons its own undoing.
- Drones equipped with thermal cameras have become the primary killer in Ukraine, turning body heat into a targeting signature that few soldiers can escape.
- Fecsa's Velum poncho claims to eliminate that signature entirely — no heat bloom, no infrared trace, nothing for a drone operator to lock onto.
- Over 300,000 units of Fecsa equipment are already in Ukrainian hands, donated through allied governments rather than sold directly, embedding the company quietly into Europe's wartime supply chain.
- The technology is already being demanded by customers before it has fully reached the market, signaling how acute the need has become on modern battlefields.
- Fecsa is now racing to extend thermal masking to vehicles, aiming to reduce their heat visibility below 0.3%, while also developing protection against nuclear, chemical, and biological threats.
A Madrid-based defense company has engineered something that once belonged to science fiction: a poncho that makes soldiers invisible to thermal and infrared sensors. Fecsa's Velum, unveiled this week, defeats the cameras mounted on military drones and weapon sights — when worn, a soldier leaves no heat signature for a drone operator to find.
The timing is deliberate. In Ukraine, drones have become the war's dominant weapon — scouting, striking, hunting. Fecsa's executive director Carlos de Cos described the poncho's effectiveness against thermal detection as "absolute," a claim that carries real weight in a conflict where being seen often means being killed. More than 300,000 units of Fecsa equipment are already with Ukrainian forces, donated through allied governments rather than sold directly — a distinction that reflects how deeply the company's products have been woven into Europe's military infrastructure.
Fecsa operates across more than fifteen European markets from its base outside Madrid, with 71 percent of this year's sales going to Spanish security forces and the Ministry of Defense. The eastern European war dramatically accelerated their export business in 2023 and 2024, and the Velum represents their next frontier — one customers are already requesting because its utility is immediate and obvious.
The company's ambitions reach further still: thermal masking for vehicles, reducing heat visibility below 0.3 percent; helmets with greater resistance; suits and masks for nuclear, chemical, and biological threats. In civilian life, they also produce fire-resistant gear for firefighters and ballistic armor for vehicles.
What the Velum signals is larger than any single product. Thermal imaging was once an elite military advantage — now every drone carries it, and the race to defeat it has become urgent. A piece of fabric that can make a soldier disappear from those sensors is no longer a novelty. In the drone age, it has become a necessity.
A Spanish defense contractor has engineered a piece of tactical gear that does something once confined to science fiction: render soldiers thermally invisible. The Velum poncho, unveiled this week by Madrid-based Fecsa, uses advanced masking technology to defeat the thermal and infrared cameras mounted on military drones and weapon sights. When a soldier wears it, they simply vanish from those sensors—no heat signature, no infrared bloom, nothing for a drone operator to lock onto.
The timing of this innovation is not accidental. In Ukraine, drones have become the dominant weapon of the war. They scout, they strike, they hunt. A soldier detected by thermal imaging is a soldier in mortal danger. Fecsa's executive director, Carlos de Cos, told reporters that the poncho achieves what he called "absolute" effectiveness against thermal and infrared detection systems. Soldiers equipped with it would be invisible to those sensors, he said—a claim that carries weight in a conflict where drone operators have become the primary threat.
The company is not speaking in theory. More than 300,000 units of Fecsa equipment are already in the hands of Ukrainian forces. De Cos noted that their helmets have saved lives in Ukraine, though he clarified that the company does not sell directly to Ukraine. Instead, other nations donate the gear. This distinction matters: it speaks to how Fecsa's products have become woven into the military infrastructure of Europe, distributed through official channels and trusted by allied governments.
Fecsa itself is based in San Sebastián de los Reyes, outside Madrid, and operates across more than fifteen European markets. The company supplies equipment to much of the continent's armed forces. This year, 71 percent of their sales went to Spanish security forces and the Ministry of Defense, though the eastern European war turbocharged their export business in 2023 and 2024. The Velum poncho represents their next frontier—a product, De Cos said, that customers are already demanding because it has immediate practical utility.
The company's ambitions extend beyond soldiers. Fecsa is developing versions of the thermal masking technology for vehicles, with the goal of reducing their thermal visibility to below 0.3 percent. They are also working on helmets with enhanced resistance, protective suits and masks against nuclear, chemical, and biological attacks. In the civilian sector, they manufacture fire-resistant gear for firefighters equipped with thermal stress monitors, and they produce ballistic armor for cargo and tactical vehicles.
What makes the Velum significant is not just the technology itself, but what it signals about the evolution of modern warfare. Thermal imaging was once an advantage held only by the most advanced militaries. Now it is ubiquitous—every drone carries it, every modern weapon sight uses it. The race to defeat it has become urgent. Fecsa's poncho is one answer to that race, a piece of fabric that could mean the difference between a soldier seen and a soldier unseen, between detected and safe. As drone warfare continues to reshape the battlefield, the ability to disappear from thermal view has become not a luxury but a necessity.
Citações Notáveis
Soldiers who use it will be invisible to those sensors— Carlos de Cos, Fecsa executive director
Our helmets have saved lives in Ukraine— Carlos de Cos, Fecsa executive director
A Conversa do Hearth Outra perspectiva sobre a história
Why does a thermal camouflage poncho matter so much right now, specifically?
Because drones have become the primary way soldiers die in Ukraine. Thermal imaging is how drone operators find targets. If you can't be seen thermally, you can't be targeted. It's that direct.
But this is just a poncho. How does fabric defeat a camera?
It's not ordinary fabric. The material is engineered to absorb and redistribute heat in ways that don't register on infrared sensors. It breaks the thermal signature that makes a human body visible. The technology is complex, but the principle is simple: make yourself look like the environment around you.
Fecsa says it's already equipped 300,000 Ukrainian soldiers. That's a massive number. How did that happen so fast?
Other countries are donating it. Fecsa doesn't sell directly to Ukraine—allied nations buy it and send it as aid. That's how military supply chains work in wartime. It also means the technology has been vetted and approved by multiple governments.
What happens next? Does this change the war?
It's one tool among many. It doesn't make soldiers invulnerable. But it does shift the calculus. If thermal detection becomes unreliable, drone operators have to find other ways to locate targets. It buys soldiers time and reduces one specific vulnerability. In a war where drones dominate, that matters.
The company is also working on vehicle versions. Why is that harder?
A vehicle generates much more heat than a person. The engine, the exhaust, the interior systems—all of it radiates. Masking that signature across a larger surface area requires more sophisticated engineering. Getting thermal visibility below 0.3 percent on a vehicle is a much harder problem than hiding a person.
Is this technology going to spread? Will other countries have it?
Almost certainly. Fecsa already sells to fifteen European markets. Once one military adopts something that works, others follow. Within a few years, thermal camouflage will probably be standard issue for many armed forces. That's how military innovation works—it spreads.