Billie Eilish x Nike Air Force 1 High neutral light brown, the “Mushroom” color is featured throughout the shoe’s suede finish, sole and strap details. 6.5WMNS Box included As a young, modern creative, Billie Eilish loves and respects the classics — including sneaker icons like the Air Force 1. For her own Air Force 1, she remixed the classic by choosing environmentally preferred materials. The Nike Grind midsole blends in with the tonal mushroom-colored upper, which itself is made with a synthetic nubuck material made from post-consumer recycled content for a super soft look and feel — all designed with sustainability in mind. Capturing Billie’s signature oversized style, five chunky mid-foot straps — inspired by the Alpha Force Low and Air Trainer 3 — cover the laces, giving the silhouette a unique and bold look.