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Color:Gravel/volt
Size: 37 EU
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Unlock your potential and go farther with the women's Bontrager Sonic road bike shoes. They're equal parts stiff and comfortable, compatible with both 2-bolt SPD-style and 3-bolt cleats.

  • Features

    • inForm Race lasts offer a slightly roomier, high-performance fit
    • Nylon composite Bronze Series soles
    • PowerTruss sole design improves stiffness without adding significant weight
    • Boa L6 dial for precise adjustment
    • Stiffness index: 7 of 14
    • Compatible with 3-bolt and 2-bolt SPD-style cleats (2-bolt mounting plates not included)
    • Women-specific design is engineered specifically to yield better fit and greater comfort

    Imported.

    View all Bontrager Women's Road Cycling Shoes
  • Technical Specs

    Best Use

    Road Cycling

    Upper

    56.9% polyurethane/32.2% nylon/10.5% polyester/0.4% steel

    Lining

    Polyester

    Outsole

    85% nylon/15% fiber

    Cleat Design

    3-hole

    SPD Compatible

    Yes

    SPD-SL Compatible

    Yes

    Time Road Compatible

    Yes

    Time Mountain Compatible

    Yes

    Look Road Compatible

    Yes

    Look Mountain Compatible

    Yes

    Crankbrothers Compatible

    Yes

    Speedplay Compatible

    Yes

    Footwear Closure

    Ratcheting Cable Lace

    Weight (Pair)

    Unavailable

    Gender

    Women's

  • Size Chart

    37 EU 38 EU 38.5 EU 39 EU 39.5 EU 40 EU 41 EU 42 EU 43 EU
    U.S. Men's 4 5 5.5 6 6.5 7 8 9 10
    U.S. Women's 5.5 6.5 7 7.5 8 8.5 9.5 10.5 11.5
    UK 4.5 5.5 6 6.5 7 7.5 8.5 9.5 10.5
    Foot Length (in.) 9.09 9.33 9.45 9.57 9.68 9.84 10.04 10.31 10.59

    Sizing Notes

    Measurements are stated in inches.

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