D12 PP is Polypropylene at a lesser density. Developed later down the track and applied by brands like Nomad Bodyboards, Funkshen Bodyboard, Custom X Bodyboards, No.6 Bodyboards and GT Bodyboards. Standard PP foam is compressed at 1.9LB density whereas D12 PP is only compressed at 1.2LB density. This offers the rider more flex and recoil without sacrificing essential elements which normally come with PP foams. D12 PP bodyboards are created to maximise control and superior flex. They offer the rider a high performance board with---- waterproof and durable tendencies. Cheap bodyboards are a rarity and by all means you get what you pay for when it comes to bodyboarding, however, by purchasing a D12 bodyboard you're getting yourself a cheap price for a quality product which has all the tendencies of a standard Polypropylene core without being as stiff. Lessening the rigidity can in instance be ideal for the intermediate or smaller built bodyboarder because it allows good flex and therefore good control.