MEET A BIGGER, BETTER, AND BOLDER Si-18 international
K-Swiss’ use of red, white, and blue is as recognizable as the shield logo itself. The colors have been part of the K-Swiss branding expression since 1966.
First introduced in 1989, the Si-18 International is an iconic representation of K-Swiss’ dedication to honoring athletic heritage while optimizing performance for future design. This reissue of the award-winning mid top combines elements of classic K-Swiss tennis, such as a premium leather upper, with innovative engineering that introduced the world to the groundbreaking Silicone Formula 18 for which the shoe is named.