"The Patagonia PowSlayer is built for deep-cycle storms, exposed ridgelines, and the kind of cold wet that tests every seam. The stretch lining and underarm vents keep the shell from becoming a sauna on the approach, so the jacket works as hard on the way up as it does on the way down. A powder skirt closes off the hem against deep snow, and the hip length layers cleanly over a mid without bunching. What Our Gearhead® Experts Are Saying:""I pull this on when the storm is serious enough that I don't want to think about my jacket. The GORE-TEX ePE Pro shell and fully sealed seams mean nothing gets through, and the underarm zips let me regulate heat on the skin track without stopping."""