The 2026 World Cup is up and running, but not without its share of controversy. It’s setting a number of unwelcome firsts: the first time a World Cup referee has been barred from a host nation, and the first time a host nation is at war with one of the participating countries. However, some slightly more welcome firsts come in the shape of the materials science behind the World Cup ball, the Trionda.
Like previous World Cup balls, the outer panels are made of polyurethane and are thermally bonded together. The Trionda has fewer panels, four, than any previous World Cup ball. It also has deeper seams between these panels than previous balls and a rougher surface. Taken together, these facts mean it should move less erratically and experience slightly more drag for longer-range kicks. Bad news if you enjoy the ball flying into the net from a ridiculous range, à la the Jabulani ball in the 2010 World Cup.
AI is everywhere in 2026, and now it’s even in the World Cup ball. This isn’t actually a first, because the 2022 World Cup ball also contained an AI sensor, but that was before AI became an everyday buzzword. This year’s ball contains a special sensor embedded in the polyurethane lining that works in conjunction with other sensors around the World Cup stadiums. The sensor helps with semi-automated offside decisions, ball speed, and more.
For more on how the composition of World Cup football materials has changed over the years, C&EN have a nice feature which examines the different materials used.
