The adidas Parley x Wmns UltraBoost 4.0 'Blue Spirit' sneaker, created by adidas in collaboration with Parley for the Oceans, showcases their commitment to protecting the world's waters. Through their partnership, adidas aims to manufacture five million pairs of UltraBoost shoes using upcycled plastic collected from beaches and coastal communities. This particular design, crafted by Stella McCartney, features a soft sea-blue knit upper, a durable footcage that also serves as the Three-Stripes insignia, and is completed with an UltraBoost outsole and Stretchweb outsole.