G-Form Elbow Pads, utilizing RPT - Reactive Protection Technology a composite blend of PORON® XRD material and proprietary G-Form materials and technology. The G-Form Elbow Pads 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. - Flexible - Lightweight - Breathable - Wicking fabric Sizing Info (SIZE - INCHES - CM)... -2XS / 5.5 - 7.0 / 14.0 - 17.8 -XS / 7.0 - 8.5 / 17.8 - 21.6 -S / 8.5 - 9.5 / 21.6 - 24.1 -M / 9.5 - 10.5 / 24.1 - 26.7 -L / 10.5 - 11.5 / 26.7 - 29.2 -XL / 11.5 - 12.5 / 29.2 - 31.8 -2XL / 12.5 - 15.5 / 31.8 - 39.4