Stump sheathstend to offer the most benefit when used for the purpose of wicking perspiration. The nylon used to manufacture sheaths is non-absorbent and allows perspiration to move through the sheath and be absorbed by your prosthetic socks. If your prosthetic sock system incorporates socks made with Coolmax, you can also expect to stay cooler in the summer and warmer in the winter.
The majority of amputees using a prosthetic sheath will wear only one against the skin. However, when used as a filler sock, another sheath is placed over prosthetic socks to micro adjust prosthetic socket fit. If applying your prosthesis is difficult on some days due to swelling, a secondary sheath will reduce any opposing friction to slide into your prosthetic socket.
For years, many prosthetic manufacturers have introduced new textile technologies to the standard stump sheath. Impregnating nylon sheath material with mineral oil gelhas enabled sheaths to now fight pressure and offer impact resistance. Sharp boney prominences are now cushioned, as well as relieved from friction. Mineral oil gel is also unique in how it moisturizes the skin with essential oils.
A prosthetic sheath is most commonly worn against the skin underneath any prosthetic socks. When worn against the skin, aprosthetic sheath will protect your residual limb against friction by absorbing movement between your sheath and stump socks. A prosthetic sheath acts as a low tech perspiration barrier. Sheaths are knitted with nonabsorbent synthetic materials such as stretch nylon . Nylon allows any perspiration to pass through the prosthetic sheath and into your prosthetic socks, offering you a feeling of dryness.
Nylon stump sheaths perform the valuable function of providing a moisture barrier and controlling friction between the skin, stump socks and your prosthesis. Stump sheaths look like hosiery but are specially constructed at the distal end to offer maximum smoothness. The top and toe are reinforced so that pulling taut is possible; however, leaving a little slack is advised to prevent stressing the material. Stump sheaths are generally worn in combination with a thicker sock, creating a prosthetic sock system.