Alpha® Silicone AK Symmetrical Liner

Alpha Silicone utilises a platinum-cured medical grade silicone designed for comfort and performance. These highly durable liners provide a high level of protection and excellent tissue stability. A unique blend of vitamin E and mineral oils promotes skin repair and protection, providing a non-greasy and non-tacky interface for the user.

Features and benefits

  • Low flow prevents silicone migrating away from sensitive areas
  • High rebound maintains original shape for increased durability
  • Suitable for medium to high activity users
  • Unidirectional stretch – eliminates pistoning without a distal matrix
  • Increased durability
  • Easy to don
  • Can accommodate volume fluctuations

Measuring Guide

Ensure accurate measurements at 4cm and 30cm from the distal end to determine the most appropriate liner for the user.

Product Part Number: S44 Kategori:


Symmetrical Profile

The symmetrical profile has increased thickness distally to provide increased comfort and protection. This tapers to 2.5mm proximally for easy donning, and a thinner edge when cutting. Being uniform circumferentially means that it can be rotated by the user to increase its lifespan.

  • 9mm distal end
  • Thins to 2.5mm proximally
  • Uniform circumferentially

Select Fabric

The Select fabric is WillowWood’s most durable and comfortable offering. Through the utilisation of unidirectional stretch material, pistoning is eliminated without the need for a distal matrix. This also means that it is easier to don for the user, and can accommodate more volume fluctuations, without the need for a new liner.

Accordion Umbrella

The accordion umbrella increases socket comfort by conforming to the shape of the underlying residuum, reducing stress and providing a more uniform pressure distribution. The umbrella size correlates to the liner size, meaning equal comfort and conformity across all sizes.

Technical Specifications

Interface MaterialAmputation LevelOuter FabricSuspension TypeProfileFunctionalityWarrantyOptional Trial Period
SiliconeTransfemoralSelectLocking - Accordion Umbrella, CushionAK SymmetricalDurable12 months from date of fitting30 days

Ordering Information

Alpha Silicone AK Symmetrical Liner Product Codes

SizeProduct Code
(Locking – Standard Umbrella)
Product Code
Proximal Measurement
Distal Measurement
Medium Plus 1S442-1694-1 S440-1694-130-54cm20-24cm
Medium Plus 2S442-1694-2S440-1694-233-54cm24-29cm
Large 1S442-1696-1S440-1696-133-64cm28-32cm
Large 2S442-1696-2S440-1696-236-64cm32-36cm
Large PlusS442-1698-1S440-1698-141-80cm32-39cm
Extra LargeS442-1697-1 S440-1697-146-90cm37-45cm



Silicone Volume Management Pads Product Codes

DescriptionProduct Code
Pack of 2 (0,45cm and 0,75cm)ALA-VM-S2

*Only use Silicone Volume Management pads with Silicone liners


Alpha Liner Manual

Alpha Liner Size Guide