Size Chart Guide

  • Below-Knee
  • Measuring Tips & Videos

STEP 1: Top & Bottom

Measure the circumference of your limb 4cm and 30cm up from the bottom. Continue to STEP 2: Find your size


Measuring for Ossur iceform prosthetic liner.

STEP 2: Find your size

Take both your top and bottom measurements and use the chart to determine your size. If you're in-between sizes, we suggest remeasuring again to be on safe side. If the size you arrived at after measuring seems too big or small, in some cases it helps to use the size of your current liner as a very rough guide. Some brands will print the size of the liner on the front or side. Continue to STEP 3: Length

SIZE Bottom (cm) Top (cm)
Small 15-26cm 20-33cm
Medium 18-31cm 23-41cm
Medium Plus 20-31cm 33-56cm
Large 23-35cm 36-56cm
Large Plus 28-43cm 40-63cm
X-Large 33-50cm 43-69cm

STEP 3: Length

Length is a matter of preference. You can trim this liner with a very sharp scissors. Start by applying your Ottobock Liner and mark on the liner where you want to trim. Remove your liner and trim at your mark.


When measuring your thigh, pay special attention to how tight you take your measurement. It's best to pull the ends of your tape measure somewhat tight and then release. Your goal is to find a middle ground of how much tension you should apply to your measuring tape. Too tight and too loose will both result in a poorly fitting prosthetic liner.




Prosthetic Categories


Ottobock Caleo 3D Liners, Cushion Liner & Locking Liner, Moderate to High Activity, TPE Gel


Ottobock Caleo 3D Liners, Cushion Liner & Locking Liner, Moderate to High Activity, TPE Gel

Size Chart Guide
$397.00 - $497.00
$397.00 - $497.00
Sale price
Unit price

*This product will delay your order 7-9 business days.


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Ottobock Caleo 3D Liners Description

A prosthetic liner is a highly functional and important component of your prosthesis. The 6Y95 Caleo 3D liner was cleverly engineered to meet the demands of moderate to high activity prosthetic users.


Manufactured with TPE thermoplastic gel, your Caleo 3D liner is capable of reducing friction, while providing skin hydration benefits through the release of medical grade white oil. TPE type gel can be thermoformed either by your prosthetist or naturally over time through heat and perspiration to provide a customized fit.  Ottobock's gel formulation results in a comfortable and durable prosthetic gel liner that is available in both locking and cushion versions.

Offered in 6mm Uniform Gel thickness in the front and 3mm in the back.


Ottobock employs a monoelastic fabric that essentially limits pistoning and removes the need for unnecessary gel reinforcement along the umbrella area of locking liners. The fabric along the knee area has been improved, offering easier knee flexion while reducing pressure over your knee cap during bending.

The Ottobock Caleo 3D Locking Prosthetic Liner option is designed for use with either pin or lanyard locking systems. This locking liner does not include either a pin or lanyard strap. 

Ottobock recommends that the Caleo 3D Cushion Liner be used in conjunction with the Ottobock Harmony or Proflex sleeves. Using this combination should create a suction (vs. vacuum) fit.

You can retrofit most Alps, Ossur, and OWW prosthetic liners with a Ottobock Caleo 3D liner.

Read our Prosthetic Liner Guide for more information on prosthetic liners.


  • Ottobock Caleo 3D Liner can be thermoformed and customized to your unique shape by your Prosthetist
  • Designed with TPE gel that is enriched with medical white oil for improved skin integrity and better durability
  • Improved design allows for easier knee flexion and simultaneously less stress on your knee cap.
  • Designed for moderate to high activity levels of below-knee limb loss
  • Monoelastic fabric prevents pistoning and eliminates the need for a reinforced bottom area
  • Compatible replacement for an Ossur Iceform, Alps, or Ohio Willow Wood prosthetic liner
  • 6mm Uniform Gel thickness in the front and 3mm in the back for easy knee bending
  • 3D cap or umbrella for locking liners is softer and more flexible
  • Latex free and hypoallergenic
  • Locking pin is not included
  • *Not vacuum approved as a replacement for the gel liner initially provided with your Vacuum System
  • Made in Germany
  • Sold individually in a polybag

Have product questions? We're here to help!


Features & Details

Ottobock Caleo 3D Liner Materials

Thermoplastic Elastomer (TPE) material enriched with medical white oil.

Directions for Use

Check the liner for damage. If a pin is attached, also check the pin for damage. Roll up the liner and place it on the end of your residual limb. Notice** Align a distal connecting element (e.g. pin, metal cap, locking mechanism) with the longitudinal axis of your residual limb. Unroll the liner onto the residual limb without displacing the soft tissue and without leaving wrinkles or air pockets. Do not pull the liner onto your residual limb.

Care Instructions

Ottobock recommends that this prosthetic liner be hand washed with pH balanced mild soap and water after each use. Rinse thoroughly. Do Not bleach. After washing, pat excess water off with a towel and lay flat to air dry 24-36 hours. Turn it inside out to thoroughly dry. If you want to machine dry your prosthetic liner, dry on air dry/low temperature setting. Turn repeated process should be done on 20 minute intervals. It’s not advisable to wear or store your Caleo 3D Liner when damp. It is suggested by Ottobock that amputees use an alternate fresh liner while the other one is being washed and dried.


Do not place your Ottobock Caleo 3D Liner on an open wound. If irritation, discomfort or poor circulation occurs, discontinue use and notify your physician or Prosthetist immediately. Do not wear your Caleo 3D for more than 20 hours daily. 

Part Numbers (SKUs)

Small 6Y95=L6-S 6Y95=C6-S
Medium 6Y95=L6-M 6Y95=C6-M
Medium Plus 6Y95=L6-MP 6Y95=C6-MP
Large 6Y95=L6-L 6Y95=C6-L
Large Plus 6Y95=L6-LP 6Y95=C6-LP


If you're not completely satisfied with your Amputee Store purchase, you can return your eligible items within 90 days of the original ship date. Items in new condition (unopened/unworn/unwashed) can be returned for a full product refund less original shipping costs. Please read our complete return policy for further instructions.

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