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Model Number:

Don't let the drop in temperature stop you from getting in your run.  Layer up in the GORE Mythos Thermo Shirt for training in cooler temperatures. The soft, synthetic fabric offers more coverage than your running tee and wicks moisture to keep you dry while the brushed thermal interior keeps you warm.  A front zipper allows for temperature control and reflective details help to keep you safe in low light settings.  A small back zipper pocket provides storage room for small essentials and thumbholes help to keep heat in and to keep this top in place.


  • Splash Blue (5608)


  • Soft, stretch fabric with moisture wicking properties
  • 8" front zipper for temperature control
  • 2.5" mock neck
  • Brushed thermal interior for warmth
  • Back zipper pocket for storage of essentials (approx. 4.5" zipper, 2.5"W x 7"H)
  • Modified raglan sleeve construction for increased range of motion
  • Mesh panels on arms for increased breathability
  • Thumbholes at cuffs to help keep top in place and increase warmth
  • Reflective details for increased visibility in low-light settings


  • Main Body (88% Nylon/12% Elastane), a smooth, brushed, moisture wicking, stretch fabric

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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