The Rev It Climate 3 Mid Layer Jacket is part of the latest REV'IT! collection. . With a spec list that puts most comparable mid layer jackets to shame, you could say Rev It's Climate 3 mid layer jacket is pretty much climate control with sleeves. It's low weight and high tech all the way thanks to Polartec Alpha active and breathable insulation. Made to keep the U.S. Special Forces warm with sustained comfort without shedding layers, this innovative insulating material is made specifically to provide temperature regulation in active situations when you're on the move. . To assure ideal working conditions, Rev It's R&D incorporated the military grade Polartec Alpha into a full-stretch design with a purposefully snug fit. With added range-extending features like the inherent quick-dry, hydrophobic properties, durable ventilation under the armpits, as well as two side pockets and a chest pocket, this on-the-bike mid layer works perfectly well as a light off-the-bike insulating jac