The JIB name of the S4 JIB comes from the short, rounded tip that reduces inertia on turns and jumps. The elastomer construction of this tip helps with shock absorption. The core of this ski is all one type of wood. This design makes for a consistent, solid feel. This ski is a step up from the lower cost S1 JIB in that it has the WRS (Weight Reduction System), which makes the S4 JIB extra lightweight. However, this ski lacks the higher cost S5 JIB's HARDCORE structure (which offers a more solid feel) and basalt reinforcements (which give the board more integrity). There are size options available for the Rossignol S4 JIB freeride ski.