Abstract: Variations of a bumper systems are disclosed. A bumper system may have one or more rotatable members and/or non-rotatable members configured to protect a vessel or structure during docking maneuvers and mooring. The rotatable and non-rotatable members may be located at any one or more desired locations on the vessel and/or its mooring. In use, rotatable members are rotated from a first rotational position to a second rotational position. Various components of the bumper system may be configured to provide protection due to their compressibility, tiltability, flexibility and/or moveability. The connection between a rotatable member and its substrate may serve as an axis of rotation of the rotatable member, may be configured to include one or more mechanisms for rotating the rotatable member and may also include mechanisms for absorbing and/or dissipating the energy transmitted during physical interactions between vessels, and/or structures.