The Fjallraven Raven Parka uses G-1000 fabric built to adapt with Greenland Wax, letting the water resistance go up exactly when the weather turns worse. Its knee-length, oversized cut extends coverage over the hips and thighs, so the warmth and protection scale with the parka's own longer silhouette. What Our Gearhead® Experts Are Saying:"I waxed mine before a stretch of sleet and rain, and water beaded off in a way it hadn't before treatment, right when I needed it most. The knee-length cut meant I never felt a cold draft creep up from below, even standing still in the wind."