Patented Oregon Aero® ShockBlockers® Extra Care: Deluxe Insole Inserts are designed for feet that need extra care. Consult your health care professional prior to use if you have a medical condition. ShockBlockers® Extra Care: Deluxe Insole Inserts also are effective for walkers (not recommended for running or standing for long periods). The top fabric is high-wicking and low-friction. There are two under-layers of special polymers, one soft and conforming, the second more stiff for improved shock absorption. At 5/16″ thick, inserts require footwear with sufficient room. Users should try insoles in new footwear before purchasing the footwear. ShockBlockers® Insole Inserts combine innovative engineering and proprietary design and materials to dramatically reduce the negative effects of the shock generated when we walk, run or stand. The insole inserts conform to and support the foot, resist odor and are trimmed easily; instructions are included. ShockBlockers® Insole Inserts are used successfully by workers, athletes, the military, pilots, law enforcement.