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Product Specifications


86% recycled polyamide/14% Elastane

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Item is returnable, but does not qualify for free returns.

On 5" Lightweight Shorts Men's

The On 5" Lightweight Running Shorts are engineered to feel fast and perform with ease. Soft but strong, the fast-drying fabrics in the shorts and briefs offer great freedom of movement. A perforated rear panel keeps you cool, while a PFC-free DWR treatment repels light rain. Let nothing stand in the way of your goals in the On 5" Lightweight Running Shorts!

  • Lightweight, 4-way stretch woven fabric
  • Perforated mesh back allows airflow; PFC-free DWR repels rain
  • Integrated (zip-free) back pocket and key loop for valuables
  • Anti-microbial inner brief offers support and odor protection over any distance


  • Special Sizing Note: The manufacturer indicates apparel fit as being one size down from size featured on label. Due to this note, we suggest sizing up from your normal size.

  • Small: 31-32" waist

    Medium: 33-34" waist
    Large: 35-36" waist
    X-Large: 37-38" waist
    2X-Large: 39-40" waist

    *Measurements refer to body size, not garment size.