On Lightweight 5" Shorts - Men's

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Get that faster-than-fast feeling with the men's On Lightweight 5" shorts. Soft but strong, the stretchy fabrics used in the shorts and integrated briefs are fast-drying and offer freedom of movement.

  • Features

    • Made with lightweight, breathable materials, including 4-way stretch woven fabric
    • PFC-free durable water repellent (DWR) treatment protects against light rain
    • Antimicrobial inner briefs offer great support plus odor protection
    • Comfortable, adjustable waistband
    • For extra comfort, a perforated panel at the rear allows airflow to help keep you cool
    • Integrated rear pocket and key loop secure your essentials like race fuel and other small valuables
    • Zero zippers or hard points make these shorts great for floor work, too
    • Ideal for road running, racing, fast training and warm weather running
    • Reflective logo for visibility at night


    View all On Men's Running Shorts
  • Technical Specs

    Best Use



    Main: 86% recycled polyamide/14% elastane; back mesh: recycled polyester

    Inner Liner


    Liner Fabric

    89% polyester/11% elastane

    Moisture Wicking


    Quick Drying


    Number of Pockets


    Inseam (in.)

    5 inches




    5.3 ounces


    Contains recycled materials

  • Size Chart

    S M L XL
    Chest 35-37 38-39 40-41 43-44
    Waist 30-31 33-34 35-36 37-39
    Hip 35-37 38-39 40-41 43-44

    Sizing Notes

    Measurements are stated in inches unless otherwise indicated.

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