The Patagonia Isthmus Anorak Jacket - Men's is a pullover windbreaker for all-season adventuring. When wind, sun, and a sprinkling of rain combine, throw this over your head and continue the hike. It's incredibly lightweight, so whether worn or packed away, it's easy to have along for the trip. The quarter-zip adjusts the temperature, while a snap-placket covers the zipper for additional protection in the cold. Cut the wind, enjoy 40+ UPF sun protection, and have a day.