10.5 Gallon Neoprene Insulation JacketNeoprene Insulation Jacket: The neoprene jacket is carefully stitched and has Velcro that allows for easy setup and removal. The neoprene insulation jacket allows for better insulation and helps retain the heat inside the kettle where it belongs. The neoprene jacket is also easy to clean. This Neoprene Insulation Jacket Will Boost Boil Performance Achieving a boil on a 5 gallon batch of wort using a 1650 watt heating element is possible using the