Abstract: A convertible top is removably fittable to a motorized vehicle or the like, such as a motorcycle. The top includes several bows, each of which has two ends, each end of each bow is attached to one of two bow support plates thus providing for storage of the bows one atop the other. Side curtains are included, thereby providing an enveloping cover for the passenger area. To prevent billowing of the cover, flow-through ventilation is facilitated.