BikersOwn Case4rain Pro 2in1 E-Bike and Pedelec saddle cover incl. protection f. battery system Wind and weather BikersOwn Case4rain Pro 2in1 ‚E-Bike and Pedelec‘ saddle cover incl. battery plug protection cover for Bosch Powerpack 300/400. The Case4rain is made of polyester, is quickly packed and easy to transport on the bike. Black with reflective print.