Borealis introduces renewables-based polymer grade for footwear midsoles

• Borealis launches renewables-based ethylene vinyl acetate (EVA) solution developed specifically for footwear midsole applications
• The new grade is part of Borealis’ Bornewables™ portfolio of premium solutions made from renewable feedstocks, delivering virgin-quality performance while reducing reliance on fossil-based materials
• The innovation is another example of how Borealis enables its customers to shift to circular solutions without compromising quality

Borealis has introduced a renewables-based ethylene vinyl acetate (EVA) grade designed for shoewear midsoles. EVA is a lightweight, foam-like material that provides comfort, cushioning and firmness, making it ideal for midsole applications. Part of the Bornewables™ portfolio, the new grade delivers the quality and durability required by the footwear industry—while enabling a midsole with a 45% lower carbon footprint than one based on traditional fossil-based materials. This innovative midsole solution is a clear example of how advanced material solutions can enable the shift to a circular economy without compromising quality.

The Bornewables is Borealis’ range of premium solutions that deliver the same material performance as fossil-based equivalents, but with significantly lower environmental impact. Feedstock is sourced entirely from waste and residue streams, including vegetable oil production residues, waste oils, and by-products from the timber and food industries. The entire portfolio is ISCC PLUS (International Sustainability & Carbon Certification) certified, ensuring full traceability from point of origin through the entire supply chain.

The first application of the new EVA grade is in a pair of lifestyle shoes by Swiss brand On, whose latest Cloud 6 model features a midsole made with the renewables-based material. The new midsole delivers the same comfort, cushioning, and durability the brand is known for, while significantly lowering the product’s carbon footprint.

"We’re pleased to support our customers in achieving their sustainability goals with this high-performance, renewable EVA solution," says Chris McArdle, Borealis Vice President Global Marketing. "This is one of the many ways we’re reinventing essentials for sustainable living." The launch of the Bornewables EVA grade for shoe midsoles marks another step in Borealis’ strategy to support its customers to advance circularity through collaboration and innovation.

Samples of Cloud 6 will be on display at our booth at K Show 2025, Hall 6, Stand A43

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This media release is also available in German language.