Thisjib uses the Dimension/Polyant 130 HTP Squared cloth and very largecorner patches for added durability and shape holding capability. Moredraft forward than the V-4, this jib is usable in all conditions, butis recommended for those sailing predominantly in medium to strongerwinds and choppier sea conditions. By adding the PS-5 to the inventory,one can greatly extend the life of the Mylar jib by using the lighterjib in only the lower half of the wind range