4W4021-TF LITE Liner Silikon SkinTex2 TF Locking

Item number: 4W4021-TF

Category: All products


Amputation level: AK
Connector: Locking
Fabric Type: SkinTex without seam
Liner Thickness: 3 mm
Liner Profile: Uniform
Material Liner: Silicone
Matrix: with inner matrix
Mobility grade: mobility class: 2-4

There are variations of this item. Please select the variation you wish.


4W4021-TF LITE Liner Silikon SkinTex 2 TF Locking

Mobility class: 2-4
for AK stumps
Connector: Locking (with distal connector)


  • made from medical grade* silicone
  • seamless Fabric cover
  • Standard with total length Matrix
  • stability by using 2,5 mm DuraSil
  • high adhesion between liner and skin
  • perfect pressure distribution
  • reduced pistoning by the matrix
  • suitable for nearly all locking devices

Article No. grey Article No. blue Matrix length Distal Circumference
4W4021-TF-26,5-G 4W4021-TF-26,5-B total matrix 26,5 cm
4W4021-TF-28-G 4W4021-TF-28-B total matrix 28 cm
4W4021-TF-30-G 4W4021-TF-30-B total matrix 30 cm
4W4021-TF-32-G 4W4021-TF-32-B total matrix 32 cm
4W4021-TF-34-G 4W4021-TF-34-B total matrix 34 cm
4W4021-TF-36-G 4W4021-TF-36-B total matrix 36 cm
4W4021-TF-38-G 4W4021-TF-38-B total matrix 38 cm
4W4021-TF-40-G 4W4021-TF-40-B total matrix 40 cm
4W4021-TF-42-G 4W4021-TF-42-B total matrix 42 cm
4W4021-TF-45-G 4W4021-TF-45-B total matrix 45 cm


How to choose the correct liner size
a) Measure the circumference of the residual limb at 4 cm from the distal end.
b) Choose the liner size corresponding to this measurement or the next smaller size, respectively.
c) Do not choose a liner whose size exceeds the measurement taken.
d) Never reduce by more than one liner size in order to avoid unnecessarily high compression.

In locking liners, a matrix with 10 cm length is integrated as a standard.This matrix should end below the head of the fibula and must not exceed it, as this could result in problems during knee flexion.