Coldweather Bottoms

The I/O Fleece pant is the good ol' boys answer to insulation. Made from 280g non-pilling fleece, these pants offer a fully elastic waist, full zip fly, and on-seam side pockets. Lycra stirrups keep...

Pants equipped for deep-freeze conditions. Freezing mornings? No sweat. Simms' Coldweather Pants combat the conditions thanks to micro fleece-lined internals and hand-warmer pockets...

Ideal base layer for colder conditions and could be worn similar to sweatpants, to and from the water.

Overview Weather protection in cozy pants form. Perfectly layered beneath waders or standing on their own through foul conditions. Stormfleece Pro combines woven fabric with fleece technology for...

Our warmest midlayer for cold days, the M's Thermal Pants feature a grid-fleece interior that traps heat next to skin, without adding bulk or limiting range of motion. Smooth faced grid-fleece...

Wool's natural properties provide resilience and comfort across a wide range of temperatures and humidity, plus it offers exceptional odor resistance — ideal for travel, daily wear, and backcountry...