How Liners Work
Liners play an important role in the comfort and health for prosthetic leg users. They fit over your residual limb and go between your limb and the socket (the socket is the shell that encases your limb and connects you to your prosthesis). If you use either a vacuum or a suction suspension system, you’ll also need a sealing sleeve.
The liner is a protective cover made of a flexible, cushioning material. Worn over your residual limb, it reduces movement and chafing between the skin and the socket. Liners are designed with specific characteristics to work with different suspension systems.
Selecting the right liner helps ensure that your prosthesis fits well and is comfortable to wear.