Alps Smart Seal liner
Designed with HD Gel and fabric covering with limited vertical elasticity in the distal area to provide high stability in the stump socket.
Recommended for users with below or above knee amputations with medium to long stumps, as well as for knee disarticulations.
The Smart Seal liner has built-in silicone-coated vacuum rings that create a secure connection. The rings adhere to the wall of the stump and prevent the liner from shifting. Due to the low elastic modulus, the inner layer of HD Gel easily adheres to the stump without restricting blood flow. Available in two configurations with different vacuum ring heights.
PECULIARITIES:
- Provides a high level of control of the prosthetic leg and minimizes soft tissue movement thanks to High Density Gel
- Hypobaric connection that avoids compression thanks to built-in silicone-coated vacuum rings.
- Designed for patients with above and below knee amputees, the vacuum rings are available in two different configurations.
- Maximum stability of the liner inside the stump thanks to High Density Gel and the use of fabric with limited vertical elasticity in the distal area
You can find a more detailed diagram of the liner and instructions for choosing the size HERE
Hypobaric liner diagram

Lock liner diagram

Alps® is an American company specializing in the production of prosthetic liners since 1993. It has been known in the world market for many years with representative offices in 5 countries, a reliable network of agents and more than 160 distributors worldwide.
With a dedication to innovation and a commitment to understanding and even anticipating the needs of prosthetists and users, Alps® has grown far beyond the initial production of prosthetic liners alone to develop a range of high-quality prosthetic solutions, including over 75 registered patents covering a wide range of product categories.
As always, investments in innovation, research and quality, both in terms of products and working methods, are a priority for Alps®, allowing us to offer a premium solution.

Technical specifications:
- Activity level: 1-4
- Fastening type : hypobaric/lock
- Material: High Density Gel
- Fabric: seamless weaving technology
- Thickness: 3mm, 6mm
Manufacturer: Alps, (USA)