You are looking at Zero-G Boot, Medium, 4" W, Average Adult from NY Orthopedic. RECOMMENDED USE: Individuals unable to avoid long periods of uninterrupted pressure over bony prominences are at increased risk for the development of necrosis and ulceration. This group of patients typically includes elderly individuals, those who are neurologically impaired, and those who are acutely hospitalized. ZERO-G Boot combines an aggressive design with hi-performance fabrics to eliminate pressure and friction to the skin. ANTIMICROBIAL FABRIC - NO ODOR, NO BACTERIA: THANKS TO THE SANITIZED BUILT-IN HYGIENE FUNCTION. People produce perspiration during all life situations. This is an ideal culture for the growth of bacteria. The sanitized hygiene function acts like a built-in deodorant and effectively prevents the development of bacteria on fabric, even during heavy perspiration.