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. And flatlock seams reduce chafing for lasting comfort. Stash an essential in the bonus zip pocket, and get to adventuring.

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
  
• Loop on back neck to hang
  
• Elbow patches
  
• Back right zip pocket fits keys or nutrition
  
• Machine wash cold, tumble dry low, don't bleach, mmkay?
  
• Designed in California, made abroad
• RW315