08381-117-M | SI-18 | PREMIUM WHITE/VAPOR BLUE

08381-117-M | SI-18 | PREMIUM WHITE/VAPOR BLUE - View 3

08381-117-M | SI-18 | PREMIUM WHITE/VAPOR BLUE - View 4

08381-117-M | SI-18 | PREMIUM WHITE/VAPOR BLUE - View 5

08381-117-M | SI-18 | PREMIUM WHITE/VAPOR BLUE - View 6

$80 ~~$125~~ In stock

First introduced in 1989, the K-Swiss Si-18 is an iconic representation of K-Swiss’ dedication to honoring athletic heritage. Reengineered for extra comfort, the SI-18 combines a soft and supple leather upper, with a full-length EVA midsole. With its vintage ski boot-inspired D-R Cinch lacing system, the Si-18 is a timelessly recognizable silhouette.

•Leather Upper

•Textile Collar Lining

•Rubber Outsole

•CMEVA Midsole

•Molded PU Sock Liner

•Lace Closure

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Michael X. ★★★★★ Oct 21, 2026

The foam midsole feels like it was built for all-day wear—I’ve walked miles without any soreness. The white and vapor blue colorway looks even sharper in person, and the classic silhouette gets compliments every time.

Daniel ★★★★★ Oct 20, 2026

The leather is surprisingly soft right out of the box — no break-in period needed at all. I wore them all day on a long walk and my feet felt great, which never happens with new shoes.

Lily E. ★★★★★ Oct 18, 2026

The leather is soft and supple right out of the box, but what really sold me is how the reengineered comfort keeps my feet happy through a full day of walking. The white and vapor blue colorway looks even better in person, and they pair with almost everything I own.