Simply put, the Air Jordan 15 is one of Billie's all-time favourite silhouettes. The sneaker itself was originally inspired by the X-15 hypersonic jet plane, with a dynamic inner bootie and Zoom Air technology seamlessly blending together fit, comfort, protection and style. Its moccasin-like look makes it easy to slip on—a key for Billie after she sprained her ankle and needed more stable footwear. Even more important to Billie, her Air Jordan collaboration was designed with sustainable materials, as this Air Jordan 15 is made with at least 20% recycled material by weight.