Based on Survitec's tried and tested four person RFD Aerolite 4F, the Covert Raft features self-erecting high stability twin buoyancy tubes, a strong protective canopy and an external platform to make boarding easier. An inflatable canopy support ensures maximum protection against the most extreme elements. Unlike a standard liferaft, the canopy and inflation tubes are all manufactured from completely dark based fabrics. The webbing lifelines are also dark coloured and there is a manually operated sea light on top of the raft. This can be switched off as required reducing the visible profile at night.