Although many appreciate the use of medical glue to keep the prosthesis in place, this solution can often be harmful, dangerous, or painful. A convenient alternative is a harness or harness: an elastic fabric system that keeps the prosthesis in position; harnesses are suitable for both packers and sexual prostheses; they are generally flesh-colored. They are not noticed as little as possible, but they are also common in black. In order to be comfortable in all situations, metal parts should be avoided, which can generate an absolute embarrassment during checks for air travel. Synthetic materials are meant to avoid the formation of sores or to prevent sweat from stagnating on the skin, creating irritation; cotton is the best upholstery material.