Constructed with 3L GORE-TEX® fabric for complete cold-weather protection, the Arc’teryx Women's Sentinel Insulated Jacket is articulated in its design and packed with Coreloft™ Compact insulation so you can maneuver freely through all winter conditions without worry of wind, rain, or snow. Lightly insulated with a flannel backing for extra comfort, this jacket is fitted with an adjustable StormHood™ for essential coverage you can wear with your favorite headgear, plus the Slide 'n Loc™ attachment system unites compatible pants and jacket for storm-ready protection.