Stella McCartney has reintroduced its S-Wave Sport trainers for fall 2025. The shoe is said to be the brand’s most responsible sneaker to date, with its components incorporating conscious innovations.
Inspired by vintage runners, the S-Wave Sport rests on a lightweight sole in a bio-based, compostable and recyclable rubber alternative called BioCir Flex. McCartney teamed up with the material science company Balena to incorporate the innovative component into the shoes.
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BioCir Flex absorbs impact, responds to motion and is as flexible as rubber while reportedly being as durable as TPU. It is also a zero-waste, bio-based alternative to fossil fuel-based plastics, created through combining high molecular weight biodegradable polymers. The shoe’s sole is dyed with natural cinnamon, giving it a delicate and unique scent.
The shoe’s uppers and mesh paneling are made from Piñayarn, a material crafted from pineapple leaf waste sourced from agricultural waste, which requires no extra land, water or pesticides. Piñayarn reduces the amount of pineapple leaves being burnt in the harvest process, saving the equivalent of up to 6 kilograms of CO2 emissions from being released into the atmosphere per 1 kilogram of yarn produced.
The shoe, which is available in brown and white, features a round toe, lace-up fastening, a black midsole, and a raised, patterned shoe tread. The style retails for $725, and it is now available for purchase in stores and on stellamccartney.com.
S-Wave Sport Mesh Paneled Sneakers<br><br>
Stella McCartney has aimed to be a progressive luxury brand since its inception. Sustainability has been at the forefront of fabric selections, design and development since McCartney’s debut collection in 1997, which also trickled down to the designer’s shoe designs.
“We strive to create the most beautiful and desirable products with the least impact on our planet. Our conscious values are the leading inspiration behind our products and innovations,” the website reads. “As industry leaders, we endeavor to make use of the most cutting-edge and progressive materials that aim to reduce impact on the planet and are always cruelty-free, whilst following the principles of circularity.”
McCartney has been a lifelong vegetarian and animal rights activist, speaking out in support of the environment and encouraging the use of sustainable practices in fashion. She has committed to not utilizing fur, feathers, leather and other materials in her collections.
“I’ve practiced this my whole life, but only now can I start trying to teach people and feel a less resistant ear on the other side,” McCartney said to WWD in an interview in 2019. “Looking at things from a different perspective is not always comfortable with people. All of the industries have contributed to the global impact that we’re feeling, and everyone needs to look at their supply chain and manufacturing and do it differently.”