Gore Bike Wear Element Windstopper Active Shell Jacket. Gore Bike Wear Element Windstopper Active Shell Jacket is an immensely versatile, all season jacket engineered to block the wind and keep you warm. Gore's renowned Windstopper membrane is not only windproof, but it's also breathable to prevent overheating and perspiration build up by allowing moisture vapor to easily escape. The zipper underflap ensures additional wind protection while the shaped collar and pre shaped elbows ensure the jackets' ergonomics are perfect when in the riding position. A pair of pockets a main rear plus front zippered Napoleon provides ample space to stow necessities such as nutrition, toolstubes, and electronics and as a bonus the jacket folds compactly when not in use.