If you're riding hard enough, you'll start finding problems with your gear at an accelerated rate. And one of the issues that we've found is that many shells and jackets quickly become unbearably hot over the course of moderate to high efforts. However, we created a solution—the Deflectª H2O Expert Active Shell Jacket. The solution to this problem all starts with the materials, which is why we selected the venerable Gore® WINDSTOPPER® Active Shell for the construction. This woven fabric rests at the pinnacle of active weather protection, boasting equal parts breathability and wind resistance. And furthering these features, the jacket includes front venting pockets, a rear exhaust port, wrist seals, and watertight, coated zippers throughout. Basically, this all means that you don't have to make any sacrifices in comfort to keep dry.