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.

SHOP COLLECTION

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.

Shop Collection

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.

Shop Collection

SHOP MEN'S

SHOP WOMEN'S

SHOP MEN'S

SHOP WOMEN'S

SHOP MEN'S

SHOP WOMEN'S

The color blue represents trust and stability and will form the base of the color scheme. The blue has been shifted to a deeper navy to give further strength and sophistication to the overall concept.

MENS SHOES
US SIZE	EUR SIZE	Length (cm)
5	37.7	23
5.5	38	23.5
6	38.5	24
6.5	39	24.5
7	39.5	25
7.5	40	25.5
8	41	26
8.5	41.5	26.5
9	42	27
9.5	42.5	27.5
10	43	28
10.5	44	28.5
11	44.5	29
11.5	45	29.5
12	46	30
12.5	46.5	30.5
13	47	31
14	49	32
15	50	32.5

MEN'S APPAREL
SIZE	CHEST	WAIST	HIPS	SLEVE LENGTH	LENGTH (PANTS)	LENGTH (SHORTS)
S	38"-40”	34"-36"	37"-39”	25, 8"	32"	6, 7"
M	40"-42”	36"-39"	39"-41”	26, 6"	32, 3"	6, 9"
L	42"-44”	39"-41"	41"-43”	27, 4"	32, 7"	7, 1"
XL	44"-46”	41"-43"	43"-45”	27, 4"	33"	7, 3"
XXL	46"-48"	43"-45"	45"-47"	28, 9"	33, 5"	7, 3"

WOMENS SHOES
US SIZE	EUR SIZE	Length (cm)
4.5	35	21.5
5	35.5	22
5.5	36	22.5
6	37	23
6.5	37.5	23.5
7	38	24
7.5	39	24.5
8	39.5	25
8.5	40	25.5
9	41	26
9.5	41.5	26.5
10	42	27
10.5	42.5	27.5
11	43	28
12	44.5	29

WOMEN'S APPAREL
SIZE	CHEST	WAIST	HIPS	SLEVE LENGTH	LENGTH (PANTS)	LENGTH (SHORTS)
XS	31"-33”	27"-29"	33"-35”	15, 5"	30, 7"	12, 6"
S	33"-35”	29"-31"	35"-37”	16, 3"	31, 1"	13"
M	35"-37”	31"-33"	37"-39”	16, 9"	31, 5"	13, 4"
L	37"-39”	33"-35"	39"-41”	17, 5"	31, 9"	13, 8"
XL	39"-41"	35"-37"	41"-43"	18.1"	32, 3"	14.2"

VARSITY SHOES
US SIZE	EUR SIZE	Length (cm)
1	32.5	20
1.5	33	20.25
2	33.5	20.5
2.5	34	21
3	35	21.5
3.5	35.5	22
4	36	22.5
4.5	37	23
5	37.5	23.5
5.5	38	24
6	39	24.5
6.6	39.5	25
7	40	25.5

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.

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.

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.

The color blue represents trust and stability and will form the base of the color scheme. The blue has been shifted to a deeper navy to give further strength and sophistication to the overall concept.

The color blue represents trust and stability and will form the base of the color scheme. The blue has been shifted to a deeper navy to give further strength and sophistication to the overall concept.

The color blue represents trust and stability and will form the base of the color scheme. The blue has been shifted to a deeper navy to give further strength and sophistication to the overall concept.

Size Chart

Size Chart

TODDLERS & LITTLE KIDS SHOES
US SIZE	EUR SIZE	Length (cm)
1	17	9.5
3	18.5	10.5
4	19.5	11.5
4.5	20	12
5	21	12.5
5.5	21.5	12.75
6	22	13
6.5	23	13.5
7	23.5	14
7.5	24	14.5
8	25	15
8.5	25.5	15.25
9	26	15.5
9.5	27	16
10	27.5	16.5
10.5	28	17
11	28.5	17.5
11.5	29	17.75
12	29.5	17.5
12.5	30	18
13	31	18.5
13.5	32	19

MEET A BIGGER, BETTER, AND BOLDERSi-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.

MEET A BIGGER, BETTER, AND BOLDERSi-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.

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.

The color blue represents trust and stability and will form the base of the color scheme. The blue has been shifted to a deeper navy to give further strength and sophistication to the overall concept.

The color blue represents trust and stability and will form the base of the color scheme. The blue has been shifted to a deeper navy to give further strength and sophistication to the overall concept.

The color blue represents trust and stability and will form the base of the color scheme. The blue has been shifted to a deeper navy to give further strength and sophistication to the overall concept.

Size Chart

Size Chart

WHAT'S YOUR EMAIL?

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.

MEET A BIGGER, BETTER, AND BOLDER
Si-18 international