Posture Flex Visco Fusion Cool Plus Memory Foam MattressVisco Fusion is a memory foam mattress with a noticable difference. The internals of the mattress has been manufactured in a such a way that it is firm and good for a person who hates orthopaedic springs but wants an alternative that can provide posture support. Features: 15cm of firmer reflex foam 5cm of medium density visco memory foam 5cm of high density visco memory foam Knitted cover for luxurious feel Removable zipped cover Cool plus cover to