Switzerland's kit manufacturer Puma said players were wearing defective shirts after seven of them ripped ripped during Sunday's 0-0 draw with France at Euro 2016.
The debacle caused Switzerland star Xherdan Shaqiri to remark: "I hope Puma does not produce condoms."
New Arsenal midfielder Granit Xhaka had to signal for a new shirt twice, while Valon Behrami, Admir Mehmedi, Fabian Schar, Breel Embolo and Blerim Dzemaili all changed once as their jerseys were ripped during the draw with France.
In the build-up to the tournament, attacker Embolo had to change his top in the friendly against Montenegro, and the Basel attacker said after the France match: "We have had a few problems with the jersey. The kit manager is not fully ready yet, but we are."
In a statement, Puma apologised to the Swiss federation and players on Monday for the "very unfortunate incident."
Puma says the problem affected "only a limited number" of shirts, which are a mix of elastane and polyester fibres and made in Turkey.
"There was one batch of material, where yarns had been damaged during the production process, leading to a weakening in the final garment," the company said. "This can happen, if the combination of heat, pressure and time is not properly controlled in the manufacturing process."
German tabloid Bild, meanwhile, claimed that Switzerland players are wearing extra-thin shirts to stimulate "micro-massages" on the skin in order to encourage blood flow.
Puma supplies shirts to five European Championship teams, including Italy.
"All federations have confirmed that they never had any such issues and are very happy with quality, functionality and design of their jerseys," Puma said.
Its main rival, Adidas, also had an equipment issue during Sunday's match in Lille. The "Beau Jeu" ball designed especially for Euro 2016 burst open when two players converged on it in a second-half challenge.