half kick structures 36 36 combine to establish the overall kick area 37 by referring to fig3 it can be seen that over half of the pad has a uniform thickness t p however the thickness increases at least two and preferably four or more times as the rear portion of the kick section merges into rear kickwall 54 of the aforementioned half kick structure 36 at the curved top portion of the structure the thickness is referenced as t k which is about six times the t p thickness this increased thickness accommodates the placement and securement of kick bladders 56 in the half kick structures it also elevates the rear upstanding kick wall 54 to provide an effective abutment means for a user 39 s foot each kick bladder 56 comprises an enclosed kick bladder wall 57 that defines an interior kick chamber 58 see fig1 the kick bladder 56 is fixed within an elongated aperture 59 that extends through the mid portion of the half kick structure from tail face 33 to outer face 35 the chamber will contain the previously described fluid to provide a cushioning effect along the length of the bladder such effect is enhanced as the kick structure itself has a curved cross section as shown and is constructed of a resilient material such as foamed rubber eva or other polymer materials alternative kick.