Stone Island’s Prototype Research Series #9 Jacket Comes in 100 Reversible Colors

January 16, 2026 - Hip Hop
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Summary

  • Stone Island’s Prototype Research_Series #9 debuts in Milan, featuring 100 unique, hand-colored hooded cardigans.
  • The collection introduces “air-blown lamination knit,” a novel reversible technology that transforms cotton chenille into durable, high-performance outerwear.

Set to be presented on January 18 – 19 in Milan, Stone Island has exclusively shared that its Prototype Research_Series #9 will include more than 100 pieces in 100 unique hues.

Progressively building onto its ongoing research and experimentation series, the ninth edition focuses on knitwear for the first time ever. The core of the innovation is its air-blown lamination knit, a novel process that expands the possibilities of knitwear as reliable outerwear. Arriving as a cotton chenille hooded cardigan equipped with reversible wear, every jacket is unique in its color.

Stone Island Prototype Research 09 Jacket Release Info

Unlike previous experiments, which focused on high-tech woven fabrics, this year’s Prototype Research project boasts a cozier appeal thanks to its knitted look. However, designed for reversibility, the contrasting laminated finish makes the garment stylistically versatile. And of course, each piece bears the signature Stone Island patches on the sleeve.

Reaching its 10th anniversary, the 2016-born Stone Island Prototype Research Series has produced limited-edition garments informed by the brand’s in-depth research and experimentation processes. From first-of-its-kind fabrics to
processes and treatments that have not yet been industrialized, the initiative has solidified Stone Island’s status as an industry innovator.

In Milan, the brand will welcome the public to see the project firsthand in a special installation designed by Ken-Tonio Yamamoto.

See the gallery above for a preview of what’s to come, along with close-up details.

Click here to view full gallery at Hypebeast

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