Skin is more prone to dryness as one ages. Symptoms of dry skin include skin roughness, scaliness, peeling and cracking are common found on the elderly or diabetic patients, especially on their foot. HKRITA’s bio-functional socks are specially designed for our elderly in Hong Kong. Wearer trials were conducted in several elderly centres in Hong Kong and the results show that effective functions were found. The bio-functional socks can buffer moisture of the feet inside the socks and moisturise foot skin. Manufactured using silver nano materials and with an innovative design of better ergonomic sock structure and functional treatment, the socks can reduce bacterial reproduction and provide better wearing comfort softness and smoothness sensation.