What is a notable feature of liners used in prosthetics?

Liners used in prosthetics are typically made from materials that do not allow air to circulate easily, making them generally non-breathable. This design choice often leads to friction between the liner and the skin, which can contribute to discomfort and skin issues for the user. While breathability can be a feature in some newer liner designs aimed at enhancing comfort and reducing sweat accumulation, it is not a characteristic of all liners. By focusing on creating a secure fit within the prosthetic socket, the non-breathable nature of these liners becomes a common aspect.

Moreover, liners are generally not intended for single use; they are designed for durability and can withstand multiple uses before needing replacement. They are also primarily composed of soft, flexible materials like silicone or gel, which offer cushioning rather than metal, which would be impractical in terms of comfort for skin contact. Understanding these material properties helps clinicians and patients make informed decisions regarding the selection and care of prosthetic liners.