LS stands for LightSpray, the trademarked technology used to create the shoes. A robotic arm sprays TPU in a helix, forming the shoe's upper in just three minutes.
"Modern shoemaking is not so modern," says Ilmarin Heitz, senior director of footwear at On. He explains the complexity of producing shoe uppers using traditional methods and the innovation of LightSpray technology.
The material in the shoes is so form-fitting that athletes may choose to wear them without socks, showcasing the comfort and fit provided by the revolutionary LightSpray technology.
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