The Mark V "family" rubbers are famous among top players all over the World. The aim when developing MarkK V XS is to offer a rubber with superior spin characteristics without loosing too much speed. The way the Yasaka technicians succeeded is - the balance of raw material for the top sheet was changed- some new chemicals are added- the production process is improvedThe result is D.A.T., Double Accelaration Technology, which gives the rubber extremely strong spin possibilities and good speed.