Thermal bottom Simms 2021 

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 

FABRIC TECH: Body - 255gsm 93% polyester, 7% elastane finished with antimicrobial + moisture management