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The GORE X-Run Ultra AS Light Vest is your ultimate trail companion for runners looking for superior lightweight protection for their core. The WINDSTOPPER® fabric acts as a barrier to the elements, while a back stretch panel allows for optimal range of motion. Two zipper pockets provide storage options, inner mesh collar promotes fast moisture transfer, and reflective details increase visibility in low-light settings.


  • Black (9900)


  • Lightweight WINDSTOPPER® fabric to protect runner's core
  • Full front zipper with windflap
  • 2" mock neck with inner mesh collar for fast moisture transfer
  • Back stretch panel for increased range of motion
  • Front bonded chest pocket (approx. 3" x 5")
  • Back zipper pocket for secure storage (approx. 3" x 5")
  • Reflective details for increased visibility in low-light settings


  • Main Body (100% Nylon), a lightweight fabric for protection from the elements
  • Stretch Panel (85% Nylon/15% Elastane), a stretch fabric for increased range of motion

Apparel Performance Characteristics

Apparel Fit: What's this?

  • Compression
  • Fitted
  • Semi-Fitted
  • Relaxed

Temperature Range °F: What's this?

  • Cold
    • Below 30
  • Moderate
    • 30-45
    • 40-55
    • 50-65
  • Hot
    • above 65

Fabric Thickness: What's this?

  • Thin
  • Medium
  • Thick

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