Celebrate Earth Day with the Nike x Air Max 90 Flyleather. Made in collaboration with Berlin-based artist Ruohan Wang. this unique sneaker is crafted from at least 50% recycled leather fiber and features custom artwork on the upper. Asymmetrical hand-drawn elements give the sneaker a unique look. while discordant colors distinguish some of its signature elements. including the Swoosh. heel patch and midsole wedge.