TRANSPARENT, INVISIBLE: They are designed to be transparent, even if you put them in the shoes, they will not be noticed by anyone, and it makes it easier for you to perceive when you should wash them to make your feet healthier. ANTIMICROBIAL AND LATEX-FREE: High quality, latex-free inserts are antimicrobial to eliminate odors from bacterial build-up for extended wearability. The inserts are easily washed by hand with a mild detergent when necessary. FITS IN ANY SHOE: The comfortable gel heel cups can be worn in most shoe styles, including athletic shoes, dress shoes and boots, with or without socks. The heel cups can also be worn inside a sock if desired. SHOCK ABSORBING: Evenly distributes the pressure created with each step. Reduces foot strain and provides additional support for ankle muscles to alleviate fatigue. The comfortable gel massages the heel and provides superior shock absorption relief. RELIEVES HEEL PAIN: Premium gel heel cups provide exceptional support for the heel and ankle, reducing pain, fatigue and swelling. Relieves foot pain caused by heel spurs, bone spurs, and plantar fasciitis by absorbing shock and reducing tension and stress with each step. Perfect for those on their feet all day.