The Billie Eilish x Nike Air Force 1 High '07 SP 'Mushroom' combines a single-tone color scheme with an eco-friendly construction. This high-top sneaker, designed in collaboration with the chart-topping artist Billie Eilish, features an ultra-soft synthetic nubuck upper made from post-consumer recycled materials. The entire shoe is adorned with a uniform beige hue. In addition to traditional laces, the upper is equipped with large adjustable straps, reflecting Billie Eilish's signature oversized style. Billie Eilish's branding can be found on the sockliner, and her Blohsh logo is featured on the molded lace dubrae. The sneaker is grounded by a tonal rubber cupsole, which incorporates Nike Grind materials, further emphasizing sustainability.