If our spring expedition runs the risk of getting wet, then the Patagonia Micro Puff Insulated Jacket can effectively insulate us while we hunker down in a tent to wait out the rain or freak June snowstorm. The power of the Plumafill insulation becomes apparent in cold and wet climates, because it can still lock in our body's warmth when wet, but it also dries quickly and can easily compress and fit into our alpine pack.