SI-18 INTERNATIONAL

FREE SHIPPING ON ORDERS OVER $50 More Info

Details Open Accordion

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 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. Flag accents adorn the heel and tongue to honor the host countries of the Grand Slam, the biggest tournament in tennis. 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
  • Molded PU Midsole
  • EVA Sock Liner
  • Lace Closure
Shipping and Returns/Exchanges Open Accordion

SHIPPING

Kswiss.com will ship all orders Monday-Friday. All orders received with Two-Day Air by 10:30AM PST will ship the same business day, Monday through Friday. All Standard FedEx Ground orders will ship within 2 to 3 business days.

Note that all orders placed after 10:30AM PST on Fridays, Saturday or Sunday will not processed until the next business day.

RETURNS/EXCHANGES

We hope you love your K-Swiss product, but if you’re not completely satisfied, you can return or exchange merchandise within 30 days of purchase. Extended return/exchanges window may apply during holiday.