N-R-Gee Heel Lifts(#NRG12)N R Gee Heel Lifts (#NRG12) The N R Gee TM material is the most shock absorbent material on the market today, absorbing up to 95% of the vertical shock. The material itself will not collapse with use, and contains a fungistat to control foot odor. The Comflex pattern was designed to absorb shear energy and distribute it horizontally, helping eliminate foot, ankle, knee, and lower back pain. Using the same material as the ShockNot shoe insole, they can