On Running created a wild new spray-on shoe. The process is called LightSpray and was inspired by glue guns.
The method is a game-changer for footwear manufacturing, per NYT:
▫️It takes 3 minutes to finish the upper part of the shoe (see video) vs. 3 hours with stitching
▫️A single person can operate the machine vs. 100 people on a normal shoe assembly line (and only has 7 parts vs. ~150 to 200)
▫️”Rather than being put together by patternmakers, it is created using parametric design principles, and computational engineering.”
How?
A robot arm sprays “a single semi-translucent synthetic monofilament almost a mile long” on to a shoe mold to finish the upper (which is then “heat-fused to a foam rubber and carbon fibre sole”).
The shoe is very light at 170 grams and has 75% less environmental impact than a normal shoe-making process because:
▫️It can be made near the final selling destination (instead of in Asia and shipped around the world)
▫️There is very little filament waste and the material is a thermoplastic (which can be melted down and re-used after the shoe is done)
The lace-less (and form-fitting) shoe is officially called Cloudboom Strike LS and has already proven itself: Kenyan runner Hellen Obiri won the 2024 Boston Marathon wearing them (time = 2:22:37).
Obiri will be wearing them at Paris 2024 Olympics, too.
“It happened in 1979 with Nike Air Tech and in 1982 with the Air Force 1,” writes NYT’s Vanessa Friedman on the history of shoe innovation. “It happened with the Adidas Yeezys in 2015. And it happened with the Nike Vaporfly and the introduction of carbon plates in 2017.”
The LightSpray will be commercially available in the Fall for $300+. That’s pricey AF but I’ll prob get a pair for my long distance…300 meter walks to Starbucks.
***
Full NYT link: https://t.co/P9Xsncy66H
Making of YouTube video from ON: https://t.co/gBPpSpc5Qx
@Boola_vogue Tremendous Matt. Absolute pleasure meeting you and lovely article. Will email you shortly. Ed ran the Zurich half marathon yesterday in 85 minutes 😂. Please send me the justgiving link. 💚
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