Model Number:

The Pearl Izumi Men's Fly Thermal Run Top fits close to the body and provides you with thermal warmth where you need it most. Don't let the soft, fleece fabric worry you; this top is very breathable and moisture wicking to keep your body dry and comfortable along your run. If your hands need extra coverage, you can use the convenient internal hand mitts for additional protection and warmth.


  • Mock collared short zip with zipper garage and zipper shield for a secure seal and temperature regulation (zipper approx. 9'')
  • Modified raglan sleeve construction for increased range of motion and a more accurate fit
  • Fabric is thermal fleece for soft, comfortable ride and increased warmth
  • Panels of fabric are placed in key, high heat areas for added breathability, along with moisture wicking away from the body
  • Internal hand mitts provide optional additional coverage and warmth
  • Reflective logo on front and back for increased visibility in low-light settings


  • Main body: (100% Polyester), thermal fleece fabric for temperature regulation

Apparel Performance Characteristics

Apparel Fit:

  • Fitted
  • Semi-Fitted
  • Relaxed

Temperature Range °C:

  • Cold
    • Below 0
  • Moderate
    • 0-10
    • 5-15
    • 10-20
  • Hot
    • 20+

Fabric Thickness:

  • Thin
  • Medium
  • Thick

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