Oregon Aero ShockBlockers Insole Inserts combine state-of-the-art designs and materials to provide the best available shock absorption, flexibility, abrasion resistance and conformability for the foot. Law enforcement personnel who demand superior foot protection can benefit from using ShockBlockers Insole Inserts in boots, cycling shoes, and even athletic and civilian footwear. ShockBlockers feature a special polymer and a high-wicking, low-friction fabric. The shock-absorbing polymer out-performs vinyl sponge, neoprene sponge, sponge rubber and latex foams in side-by-side drop weight tests. Its micro-cellular structure resists shearing forces that cause conventional insoles to squash flat. Independent drop tests comparing Oregon Aero ShockBlockers Insole Inserts and other insoles with shock-absorbing features showed ShockBlockers Insole Inserts offer 20 percent more shock absorption.