G-Form Elbow Pads utilize RPTTM - Reactive Protection Technology, a composite blend of PORON® XRDTM material and proprietary G-Form materials and technology. They offer consistent, repeated impact absorption for dependable performance throughout the life of the product. They are the first flexible, molded, exoskeleton rate-dependent impact pad worn on the outside of the sleeve. The ridges and hinges of the pad are specifically designed to flex with the elbow and arm to ensure complete protection. The G-Form does not need to be replaced after impact, and does not lose any of it"s protective qualities after repeated use. The pad can be worn in warm or cold weather, on top of or underneath clothing. It can be washed and worn repeatedly.Reactive Protection TechnologyImpact absortion to protect arms and elbowsFlexible, molded, exoskeleton impact padRidges and hinges flex with the elbowProtective qualities do not diminish after repeated use.Sizing Chart(measure around arm at center of elbow)XS-7" - 8.5"