Layer one matters most. But will any flatter and fit like our new thermal top? Lightweight grid fleece performs as a breathable base or solo layer. Flatlock seams reduce chafing for long-lasting comfort.

We love it for: cold weather running

• 67% recycled polyester, 27% polyester & 6% spandex
  
• Lightweight grid fleece
  
• Warm, stretchy & quick-drying
  
• Tailored fit 
  
• Flatlock seams
  
• Locker loop
  
• Elbow patches
  
• Machine wash cold, tumble dry low, don't bleach
  
• Designed in California, made abroad