Their classic 3-in-1 jacket features a waterproof-breathable, thermal-reflective outer shell and a cozy fleece liner. Wear each layer separately or zipped together to take on winter’s worst. Established in 1984, our Interchange system continues to evolve so you stay warm, dry, and protected. These 3-in-1 jackets include a weatherproof shell and an insulated inner layer for added warmth. Each can be worn separately in mild conditions or combined for maximum storm-fighting power.