A cast cover is formed in a shape of a sheath including a closed first end, an open second end, and a side opening. The side opening includes a first side edge and a second side edge. At least one first fastening device is coupled to the sheath adjacent the first side edge and at least one second fastening device is coupled to the sheath adjacent the second side edge. The first fastening device is configured to be releaseably coupled to the second fastening device. The first fastening device may be a hook feature such as a button secured to an exterior surface of the sheath. The second fastening device may be a retaining feature adapted to be retained on the first fastening device, such as an elastic loop.
