Billie Eilish X AAF88 Billie Eilish continues her collaboration with Nike on the Alpha Air Force 88. The AAF88 has an innovative reputation due to the air cushioning rarity that grew in popularity in the late 80’s. Features a leather construction, signature front stability strap with Nike branding and Billie Eilish on the inner sole to mark to partnership. The pair stays true to its original form and basketball heritage.