High-end fashion and sportswear brands are taking a growing interest in recycled and alternative fabrics made from unusual materials like mushrooms, oranges and even proteins inspired by spider-web DNA — but not just out of concern for the environment. They are recognizing that these cool materials of tomorrow could be something people want to buy today.


In addition to bio-fabricated materials, the Stella McCartney brand and its founding partner, the luxury group Kering, are investing in ways to recycle fashion items and use fewer resources, such as water. Ms. McCartney’s Falabella Go bags are made of recycled polyester and Econyl, a nylon produced from recycled fishing nets, carpets and other such waste, manufactured by the Italian company Aquafil.


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