Our cold weather mid-layer bottom just got even better with full-leg zips and a velcro waist closure that allow an easy on/off in the field without taking off your pants or boots. The side zips are also placed front-forward to eliminate hot spots under pants and a pack, and the bottom still integrates with all Stratum Layered Zipper System pants in the SG line to allow instant ventilation from skin to shell. And best of all, a new zippered fly makes it a breeze to take a whiz.Features10.2 oz. (Large)Highly breathable microgrid fleece fabricStratum Layered Zipper System full-leg zipsStrategic side zipper placement to minimize hot spotsVelcro waist closureZippered flyPremium YKK zippersPolygiene odor control technology