Making fresh tracks? These pants will keep you warm with an Omni-Heat thermal reflective lining that helps retain body heat, while allowing a high level of breathability and interior airflow. They're comfortable to move in too, thanks to a regular fit, drawcord elastic waist, and adjustable leg openings. For maximum storm-fighting power, these lightweight pants are crafted from water-resistant Storm-Lite DP II fabric and filled with a combination of Thermarator and Microtemp XF recycled insulation. A double-whammy of warmth. Columbia offers these pants in multiple sizes. Regular Fit. To ensure you get the right size, please refer to our sizing chart.