The Re-creation initiative upcycles materials from old products to create unique new designs, reducing the need for virgin resources. Alternatively, Allbirds focuses on natural materials like merino wool and eucalyptus tree fibres, setting a standard for alternative materials use in sneaker production, the possibilities for experimenting with natural fibres in a space that has generally relied on synthetics, and Portuguese sneaker brand SAYE primarily use materials such as organic cotton, recycled plastic bottles, and natural rubber in their production process, with brand also promoting a circular economy through their a take-back scheme, and recycle old shoes. These are just a small handful of changes occurring across the industry.