Fillauer LLC, known for outstanding superior quality products and excel in terms of being durable features of ElementDS Foot System. Its unique design incorporates use of innovative 3rd carbon-composite spring, which assist the foot in every phase of gait cycle. Beginning with heel strike to toe off and mid-stance, ElementDS Foot System gives a foot unsurpassed energy return, stability and smoothness. Other composite foot designs provide hesitation at mid-stance because of a delay in center of pressure during transition from heel to toe. Generally referred to as “dead spot”; ElementDS Foot System is intrinsic in other designs, because of loss of dynamic support as a series of or one stiff carbon is loaded. The patent pending design of the device removes this dead spot by permitting the upper spring loading 3rd-Element carbon-spring at midstance. This facilitate the foot to deliver its energy to the closing part of the gait-cycle, moving the area of stability ahead in the foot. The product blends the stability and smooth rollover in the forefoot to offer a more symmetrical gait and even stride lengths.