The Retro Runner is a vintage-inspired silhouette modernized with cutting-edge, sustainable materials. Shown here in our beloved Castagna color, it has vegetable-tanned leather upper that develops a rich patina over time and is set on a Koio ReCycled™ sole that provides comfort and flexibility through every step.
Important information: Our Castagna leather is a vegetable-tanned premium Italian leather. Thanks to this tanning method and the hand-polishing, it attains a unique depth and sheen. It will age gracefully and change its appearance slightly over time. Given the natural tanning process, you can expect variations from the images shown. These variations are a result of the manufacturing process and a testament to the high-quality craftsmanship we pursue.
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LWG Gold-certified leather: This sneaker is lined with leather that's Gold-certified by the Leather Working Group (LWG), meaning it's responsibly tanned in a facility that safely and carefully manages emissions, energy and water consumption, and waste.
Recycled materials: This sneaker has a Koio ReCycled™ [68 TPU] outsole, 68% of which is recycled TPU from neighboring factories in Italy. It also has a Koio ReCycled™ [30 EVA] midsole, 30% of which is recycled EVA. It's fitted with an OrthoLite® Hybrid insole made with recycled foam and rubber from previous production processes.
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