ONYX® 13
    • Features

    ONYX® 13"

    ONYX® 13
    • 1. Flame-Resistant, Water-Resistant Leather

      Specially softened tumbled leather in high-flex areas to move with you.

    • 2. GORE® CROSSTECH® Footwear Fabric

      A full-height bootie liner made from a package of Omaha lining fabric, 300g insulation, and GORE® CROSSTECH® moisture barrier provides protection unmatched by any other waterproof, breathable barrier.

      Crosstech logo
    • 3. Flexible NOMEX® Webbing Pull Straps

      Slide easily under turnout pants and are kind to your legs.

    • 4. Padded Composite Shin Guard

      Provides extra protection when you are working on a ladder.

    • 5. HEELPORT Internal Fit System

      Holds your heel securely so it won’t slip while cushioning your ankle.

    • 6. Composite Heel Counter

      Individually molded to fit each size perfectly.

    • 7. Composite Safety Toe Cap

      Lighter than steel, doesn’t transmit heat or cold, and exceeds NFPA standards for safety.

    • 8. VIBRAM® Toe Bumper

      Made from the same rugged compound as the outsole for abrasion resistance when crawling.

      Vibram logo
    • 9. Dual-Density Enhanced 3D Molded Footbed System

      Removable dual-density footbeds are contoured to cradle and cushion the bottom of your feet and to provide arch support. Urethane foam bottom layer provides durable cushioning while a micro-cellular open-cell foam top layer delivers cool, all-day comfort. Moisture-wicking and anti-microbial fabric top pulls moisture away from your feet. An additional set of polymer inserts are provided to install under the footbeds when a snugger fit is desired.

    • 10. 3D Composite Lasting Board

      Molded, contoured, and lasted to boot uppers with a built-in flex zone in the forefoot and a torsionally stable heel. Works together with the 3D molded footbed to conform to the shape of your foot.

    • 11. Composite Shank

      Lighter than steel, doesn’t transmit heat or cold, springs back to shape better.

    • 12. Composite Puncture Protection

      Far more flexible than a steel plate and doesn’t transmit heat or cold. Exceeds NFPA standards.

    • 13. VIBRAM® Contoured Cup Outsole

      Molded outsole wraps onto the leather upper for athletic shoe performance. Flame, abrasion, oil, acid and slip-resistant compound engineered for high traction and durability even during prolonged exposure to extremes of heat and cold.

    • 14. Athletic Footwear Construction

      2-part cross-linking adhesive bonds outsoles to the upper. Without stiff welts and ribbed mid-soles, this attachment process is far more flexible.

    • 15. Slip-Resistant Tread

      Siping – thin slits cut into flat areas across the sole – opens up when flexed to provide additional traction on water and ice. Self-cleaning lugs and omni-direction tread pattern designed for superior performance in all terrains and when working on ladders.

    • 16. Extended Size Range

      Men's: Full Sizes 5-18 and Half Sizes 5½-15½ in Narrow, Medium, Wide, and X-Wide widths.

      Women's: Full Sizes 5-12 and Half Sizes 5½-11½ in Narrow, Medium, Wide, and X-Wide widths.

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