Orage Stark 3-in-1 Jacket: The ancient magic of arithmetic states that one plus two equals three. The Orage Stark 3-in-1 Jacket comes with two layers, so how do we get three jackets? Permutations, my friends. With a weather-resistant outer shell and a zip-in micro-fleece jacket inside, you get a non-insulated shell and a fleece for lighter fare. Combine the two for the maximum warmth of an insulated jacket. Voila, 3-in-1. And who said math would never come in handy?