"Impromptu" is a great joint creation from Asphaltgold and ASICS featuring the ASICS EX89 model prominently. Taking place five years after their groundbreaking initial collaboration, this much-anticipated collaboration showcases Asphaltgold's passion for music, particularly jazz, which is known for its improvisational style.

Over the course of a year, the cooperation developed methodically and carefully. Top-notch materials such as nubuck, hairy suede, and soft leather define the exterior of the shoe perfectly. Combining these components in natural tones results in a beautiful design. Satin midsoles and interiors have the same color scheme to maintain uniformity. An eye-catching aesthetic feature is Asphaltgold's name along the lateral side in bold black lettering.