Seriously, anyone looking for winter leg gear should try these on. They are ridiculously comfortable. The material is soft and stretchy, with no resistance through a running stride. The waistband is big and tight enough to hold in place even when running to work with a full backpack. The crotch area is slightly baggy, providing less of an awkward moment when getting in the elevator with a coworker.
Recently wore these for a weekend in the mountains and they kept me snug and comfy, while performing to a high degree on some technical winter hiking. Would make a GREAT holiday gift.