first ends of the supports rods meet at a first location at which a first joint 106 a is formed while second ends of the support rods meet at a second location at which a second joint 106 b is formed an elastic member 104 provides support to the entire structure by applying a compressive force to the meeting first ends and the meeting second ends by connecting opposing joints 106 a 106 b the compressive force applied by the elastic member urges said first ends towards said second ends the elastic member 104 may take the form of an elastic cord rope cloth strap fabric strap cable or other like material the shelter 100 may be provided with a floor 108 which may be formed of the same material as the cover the floor 108 may be detachably connected to the cover 102 via a zipper alternatively the floor may be sewn to the cover in which case it is not intended to be separated from the cover 0028 fig2 shows a side view of the assembled shelter seen in fig1 the shelter 100 is provided with a single opening 112 having a maximum width w near the base of the shelter and a maximum height h near the center of the opening the opening 112 is sufficiently large for entry and exit of a person perhaps in a crouched or non erect position the opening 112 is defined between the where the top member 306 is encased.