These Essential Hike Warm Pants from Columbia don't back down from the cold. Built with thermalreflective tech, they deliver lightweight warmth and breathability in cool conditions, while adjustable details dial in the fit. Utility features like a Dring and zippered pockets seal the deal for coldweather hikes. Omni-Heat(TM) thermal-reflective breathable lining retains warmth using silver dots that reflect body heat, so you stay warm and comfortable as temps drop Partial-elastic waist with integrated belt for a comfortable fit Gusset detail in crotch for comfort D-ring for added utility Tapered leg for a close-to-the-body fit at the cuffs Side leg pocket for easy access Zippered back pocket for secure storage Gaiter clips and drawcords on cuffs help block debris Active Fit is a body skimming fit with end-use mobility in mind