Castelli pave jacketthe castelli pave jacket is an exercise in reducing the rain jacket to the bare minimum you need a high performance fabric so castelli worked with event to make a lighter version of what theyre already supplying to some worldtour teams so castelli cut it close to the body to minimize flapping fabric and to improve aerodynamics features exclusive event ultralight microfiber fabric external seam taping for total waterproof construction waterproof ykk vislon zipper sili