Abstract: A wrap-around heat shrinkable protective jacket is used on conduits such as cables, pipes or tubes carrying liquids, gas or electricity to name a few. The protective jacket is applicable to junction blocks, junction tees and wire harnesses and to protect or repair damaged areas of such configurations. A lay-flat design is used to easily install around existing cables, pipes or tubes. A shrinkable material is used to secure and protect these cables, pipes or tubes. Other materials can be added to the jacket interior for additional protection.