Alpha DESIGN® AK Liners


Experience the most comfort possible with the custom Alpha DESIGN AK Liner. Transfemoral amputees with uniquely-shaped residual limbs or residual limbs that are bony, uneven in shape or invaginated are the ideal candidates for Alpha DESIGN AK Liners. When creating an Alpha DESIGN AK Liner prosthetists can adjust the gel thickness to as low as 3 mm proximally, to 3 mm thickness at the medial wall, to 25 mm over invaginations on the residual limb. Gel pads up to 12 mm thickness can also be applied where needed throughout the liner. The custom fit offered in an Alpha DESIGN AK Liners allow amputees with less-optimally shaped residual limbs comfort while wearing their prostheses. For added comfort, select the add-on feature of an AK Comfort Cuff which follows the angle of the socket brim and protects the liner from wear and tear. Silver antimicrobial fabric used on the cuff reduces odor from wearing the liner all day.

A new socket should be fabricated, according to instructions, for the best performance of an Alpha DESIGN AK Liner. DESIGN AK Liners created from casts and electronic order forms will be less detailed than those created using OMEGA®. Click here for an order form.

Product Highlights:
  • Design the gel within the liner to provide custom comfort for transfemoral amputees
  • AK Comfort Cuff protects liner from wear & tear at brim line (not available with Select Fabric)
  • Adjust gel thickness up to 25 mm
  • Made with skin-friendly thermoplastic elastomer
  • Multiple fabric choices
  • Online Ordering Resource:
    Alpha DESIGN Liner Ordering Instructions
    Alpha DESIGN Liner Casting Instructions
Interface Classic Gel
Hybrid Gel
Classic Gel/Silicone
Fabric Styles Original
Fabric-Free (Satin finish)
Colors Buff – Original, Spirit, MAX fabrics
Gray – Select fabric
Taupe – Select fabric
Dark Gray – Satin finish
Add-on Feature AK Comfort Cuff (additional fee required) – Not available with Select fabric
Warranty 12 months from date of patient fitting*
U.S. L-Code Suggestion L5681 or L5683 (Initial liner, bill once per liner)
L5679 (Duplicate cushion liner) OR
L5673 (Duplicate locking liner)
L8417 (Gel Sock)

Please note that drying stands are not included with Alpha Liners. Available separately in most countries.

* Initial Alpha DESIGN Liners ordered with part numbers “OT” or “EO” will be fabricated based on customer-provided specifications. If a customer is not satisfied with the initial DESIGN liner, it may be returned within 30 days of patient fitting for alteration, replacement, or credit at the sole discretion of WillowWood (trial period does not apply to duplicate DESIGN liners). Credit will only be applied if it is determined the product is not appropriate for the intended patient. Returns will not be accepted for customer errors.

Please note that drying stands are not included with Alpha Liners. Available separately in most countries.

Lead times:
Classic Gel – 5 days
Hybrid Gel – 10 days
Duo (Fabric-Free) – 10 days

Part No.




DUO (fabric-free)

ALL-DES-EO ALC-DES-EO ADC-DES-EO* Alpha DESIGN Liner via Electronic Order, Initial
ALC-DES-CC AK Comfort Cuff, Add-on (AK Liners only)
DES-WEBASSIST Webinar Assist

* Fabric-Free Alpha DESIGN Liners include a Gel Sock.

Ordering an Alpha DESIGN Liner is easy no matter your workflow.
1. Order via OMEGA®
2. Alpha DESIGN app for iOS
3. Sending plaster cast with a completed electronic order form.

NOTE: Insignia scans may be converted to AOP files and submitted by e-mail to:


The Alpha DESIGN app Preview



Caring for Alpha® Liner Video
Review complete care of Alpha Liners: Putting on liners, daily cleaning, weekly disinfecting and storage.

Find Your Liner Part Number

Enter an Alpha® Liner serial number and the corresponding part number will display.


Thank you for choosing Alpha Liners!