Model Number:

The Pearl Izumi Men's Fly Thermal Tight is a high-performance tight that will get you through your coldest runs. The Transfer Dry fabric provides efficient moisture-management to keep you feeling dry and comfortable, while the brushed interior provides thermal warmth to keep you protected from the cold. Flatlock seams prevent your skin from chafing and a back zippered pocket offers secure storage for your small running essentials. Neon yellow panels provide high-contrast visibility along with increased breathability, and reflective design elements also keep you more visible in low-light conditions.

Length: Inseam approx. 29.75", outseam approx. 37.75" (size medium, unstretched)


  • Elastic waistband with internal drawstring for adjustable fit
  • Internal built in brief for added comfort and support
  • Stretch fabric for supportive hold
  • Transfer Dry fabric provides efficient moisture-management to keep you dry and comfortable
  • Brushed thermal interior for increased warmth
  • Flatlock seams to help eliminate chafing
  • Back zipper pocket for storing small essentials (pocket approx. 7" W x 3" H, lockdown zipper approx. 4.5")
  • Gusseted crotch for increased freedom of movement
  • Neon yellow stretch panels provide increased contrast and visibility along with increased breathability
  • Reflective taping, logos, and design details for increased visibility in low-light settings


  • Main body: (83% Polyester, 17% Elastane), Transfer Dry fabric provides efficient moisture-management
  • Insert: (90% Polyester, 10% Elastane), brushed lining for thermal warmth

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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