The Gore Bike Wear Fusion 2. 0 GT AS is constructed from both Gore Tex Active Shell and Stretch fabrics. These fabrics are fully waterproof to keep you dry. At the same time, they are also breathable so that moisture buildup from sweat is moved to the outside of the jacket to keep you dry. The fit is designed to be form fit so that it won't catch excess wind on your ride and slow you down. The cut has been contoured so that there isn't any bunching at the elbows when you bend your arms, and the waist opening is adjustable with a drawcord. There is only one zippered pocket on the chest, but the Fusion will easily fit over full jersey pockets and keep all the contents dry. Reflective logos have been added to the front and back to increase your low light visibility.