With an open Power Grid™ Fleece back, the Flyweight Access Jacket provides warmth to fight the morning chill yet has the breathability you want for venturing into the backcountry and beyond.
Our patented grid construction knit strengthens performance efficiency by increasing warmth and breathability, while also reducing fabric mass. These geometric patterns improve compressibility, wicking, and add technical style. By reinventing thermal warmth possibilities, Power Grid™ is a minimalist design that maximizes fabric performance.