Alpha® Duo

Amputation Level
Transfemoral (AK)
Suspension Method

The Alpha Duo liner’s unique formulation combines an inner skin-friendly Classic Gel layer that nurtures and nourishes the skin, with an outer Silicone layer that provides stability and contains the soft tissue. The liner’s fabric-free exterior has a satin finish for easy donning without the use of lubricants. The symmetrical profile allows for liner rotation extending the life of the liner. Included with each liner is the One Gel Sock featuring the MAX fabric that stabilizes soft tissue, serves as an air wick, and protects the satin finish of the liner.

The Duo liner provides the optimal combination of comfort and durability for users of suction suspension or elevated vacuum.


Symmetrical 4.5mm, Fabricless

Part Number Profile Color Size
D990-1943 Symmetrical 4.5mm Dark Gray Small
D990-1940 Symmetrical 4.5mm Dark Gray Medium
D990-1944 Symmetrical 4.5mm Dark Gray Medium+
D990-1946 Symmetrical 4.5mm Dark Gray Large
D990-1948 Symmetrical 4.5mm Dark Gray Large+
D990-1947 Symmetrical 4.5mm Dark Gray Extra Large
Color Options
Dark Gray

Sizing Guides

Related Products

Unique liner formulation combines the benefits of gel and silicone

Amputation Level
Transtibial (BK)
Suspension Method