The Pac-Away shell is built for the kind of forecasts that keep you guessing. It’s made from a lightweight, 2.5-ply 100% nylon ripstop that’s highly wind, tear, and water-resistant. To make it even tougher, the jacket is seam-sealed to improve weather resistance and designed with clever pockets to make for easy everyday carry. When the Pac-Away isn’t in use, use the left-hand reversible pocket to pack the jacket fully into itself.