First introduced in 1989, the Si-18 Premier is an iconic representation of K-Swiss’ dedication to honoring athletic heritage while optimizing performance for future design. This reissue of the award-winning style 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. Along with a vintage ski boot-inspired D-R Cinch lacing system and an asymmetric single-density PU midsole, the Si-18 International Heritage provides unmatched comfort and support in a timelessly recognizable silhouette.

• Leather Upper
• Textile Collar Lining
• Rubber Outsole
• CMEVA Midsole
• Die Cut EVA Smart Foam Sock Liner
• Lace Closure