All winter long, you're on high alert for the next big storm, the next refresher, or the next snow-stealing powder hound who crosses through the fall line. In the Arc'teryx Women's Sentinel Jacket, your tours of duty through storms are warm and dry events. Guaranteed waterproof and breathable three-layer GoreTex Pro technology ensures your ski-hungry bod stays dry when the skies are spewing snow and you're hiking to the lookout. A relaxed cut lets you put your puffy underneath when temps nosedive. Being the first in line when ski patrol opens the world's best bowl matters to you. Traveling the traverse and side-stepping with speed gets your sweat going. Open the underarm vents to dump excess heat without losing your primo position in line. As you wait for the sign to change from Closed to Open, snap the powder skirt together to keep the snow spray from sneaking up your back. The hood holds your helmet so you don't have to choose between casing your cranium and a dry dome. When it's dumping and your enjoying fresh tracks every time, the laminated brim diverts a bit of the weather away from your face.