Simms Thermal Pant

Simms Thermal Bottom

Our warmest layer for cold days, the Men's Thermal Bottoms feature a grid-fleece interior that traps heat next to skin, without adding bulk or limiting range of motion.


  • Smooth faced grid-fleece layers perfectly with our baselayers to provide maximum warmth
  • Self fabric waistband with dual snap closure and zippered fly allow for easy on and off transitions
  • Dual slash handwarmer pockets
  • Patterned with a gusseted crotch for maximum comfort and easy layering with bibs or waders
  • Tapered hem for a streamline fit when wearing layers underneath and over top
  • Body - 255gsm 93% polyester, 7% elastane finished with Polygiene antimicrobial + moisture management