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    STYLE NEVER SIDELINED

    We welcome the newest addition to the SI-18 family, the Si-2018 Fusion Leather.

    This refreshing update to a 1989 classic is the only pair of shoes that truly unites tennis roots with street-wear to create that unique look.

    Its classic-style leather vamp is perforated for venting while its leather heel counter features an oversized 3D printed K-Swiss wordmark for a bold, modern look. A medial side 5 stripes detail in elastic webbing contributes to form and function, crossing over the tongue and under the lace-up to add stretch, stability and support.

    K-Swiss’ signature Aösta 7.0 high-density rubber is used to create the Si-2018 Fusion L’s reinforced toe bumper and durable outsole with deep herringbone tread, for a unique sneaker that bridges tennis-specific technology with street style looks.

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    Size Chart
    Adult and Big-Kids
    Gen Men Women Big-Kids
    CM US UK EUR US UK EUR US UK EUR
    20 1 13.5 32.5
    20.25 1.5 1 33
    20.5 2 1.5 33.5
    21 4 2 34.5 2.5 2 34
    21.5 4.5 2.5 35 3 2.5 35
    22 5 3 35.5 3.5 3 35.5
    22.5 4.5 3.5 37 5.5 3.5 36 4 3.5 36
    23 5 4 37.5 6 4 37 4.5 4 37
    23.5 5.5 4.5 38 6.5 4.5 37.5 5 4.5 37.5
    24 6 5 38.5 7 5 38 5.5 5 38
    24.5 6.5 5.5 39 7.5 5.5 39 6 5.5 39
    25 7 6 39.5 8 6 39.5 6.5 6 39.5
    25.5 7.5 6.5 40 8.5 6.5 40 7 6.5 40
    26 8 7 41 9 7 41
    26.5 8.5 7.5 41.5 9.5 7.5 41.5
    27 9 8 42 10 8 42
    27.5 9.5 8.5 42.5 10.5 8.5 42.5
    28 10 9 43 11 9 43
    28.5 10.5 9.5 44
    29 11 10 44.5 12 10 44.5
    29.5 11.5 10.5 45
    30 12 11 46
    30.5 12.5 11.5 46.5
    31 13 12 47
    32 14 13 49
    32.5 15 14 50
    Kids
    Gen Big-Kids Little-Kids Toddlers
    CM US UK EUR US UK EUR US UK EUR
    9.5 2 1.5 17
    10.5 3 2.5 18.5
    11.5 4 3.5 19.5
    12 4.5 4 20
    12.5 5 4.5 21
    12.75 5.5 5 21.5
    13 6 5.5 22
    13.5 6.5 6 23
    14 7 6.5 23.5
    14.5 7.5 7 24
    15 8 7.5 25
    15.25 8.5 8 25.5 8.5 8 25.5
    15.5 9 8.5 26 9 8.5 26
    16 9.5 9 27 9.5 9 27
    16.5 10 9.5 27.5 10 9.5 27.5
    17 10.5 10 28
    17.5 11 10.5 28.5
    17.75 11.5 11 29
    18 12 11.5 29.5
    18.5 12.5 12 30
    19 13 12.5 31
    19.5 13.5 13 32
    20 1 13.5 32.5 1 13.5 32.5
    20.25 1.5 1 33 1.5 1 33
    20.5 2 1.5 33.5 2 1.5 33.5
    21 2.5 2 34 2.5 2 34
    21.5 3 2.5 35 3 2.5 35
    22 3.5 3 35.5 3.5 3 35.5
    22.5 4 3.5 36
    23 4.5 4 37
    23.5 5 4.5 37.5
    24 5.5 5 38
    24.5 6 5.5 39
    25 6.5 6 39.5
    25.5 7 6.5 40