Made in collaboration with the Berlin-based artist, the Ruohan Wang x Nike Air Max 90 Flyleather celebrates Earth Day with custom artwork on an upper crafted from at least 50% recycled leather fiber, gathered from scraps in the leather manufacturing process. Asymmetrical hand-drawn elements include woven tags atop the padded leather tongue. Discordant colors distinguish some of the sneaker’s signature elements, including the Swoosh, heel patch and midsole wedge.