A protective window attachment for use with a vehicle includes a frame assembly detachably coupled to the vehicle and having an upper assembly pivotably mounted to the lower assembly, the upper assembly having an upper outer frame placed against edges of the window and upper bars having top ends coupled to the upper outer frame, each upper bar extending over the window and having a convex curvature, the lower assembly having a lower outer frame pivotably mounted to the upper outer frame, and a plurality of lower bars, the lower bars having top ends pivotably mounted to bottom ends of the upper bars and bottom ends coupled to the lower outer frame. The convex curvature of the upper bars creates sufficient space between the upper bars and the window to prevent external impact forces from reaching the window.