Abstract: A canopy for use on a vehicle such as a boat, tractor or the like is provided which is collapsable from an upright position to a collapsed position when the canopy strikes an object and which is conveniently detached from the vehicle and configured to a portable carrying position. The canopy preferably includes two U-shaped support members pivotally intercoupled at the ends thereof and adapted for a coupling with the side rails of the vehicle; a tarpaulin spanning the area between the cross bars of the members; and rubber straps coupled with the members and adapted for slidably coupling with the side rails. The canopy is configured so that when it is in an upright position on the vehicle and strikes an object, the canopy will collapse thereby preventing damage to the canopy, the vehicle, or an occupant. The canopy can also be placed in a storage position for convenient carrying.