Originally Posted by treilley
Change out the foam. It is not cheap though. Use two different density foams. The top layer should be less dense. Check with Sailrite. They can help you out with this.
I agree... I'm redoing all the interior cushions on my boat and the yellow high density foam is too stiff so I am cutting the top 1-2 inches off the foam and bonding the top layer with 1-2 inches of lower density foam... also added 1" of polyester fill that comes in rolls bonded to the low density foam... it is now plush and soft on our bottoms but springy due to the high density foam underneath... all covered in brand new Royal Navy blue cotton duck... looks great... oh and I'm sewing the cushion covers myself...