For professionals
Specification you can check, not adjectives you have to trust.
You are accountable for the fitting. So we publish the variables you would want to control: blend purpose, wall thickness, conicity, textile behaviour, sizing rules and what our tests do not show.
What we do differently
A product description that survives a technical question.
- Challenge
- Product documentation often describes a material family and an activity level, which is not enough to predict behaviour in a specific fitting.
- Why it matters
- Without formulation, thickness and textile data, product selection becomes trial and error paid for by the user's comfort and your clinic's time.
- Our approach
- Every Nord° product publishes its formula purpose, wall thickness profile, textile, dimensions, sizing rule and evidence status.
- Evidence
- Product-level specification sheets, sizing protocols, mechanical test series and clinical cases.
- Next step
- Open the product specifications
Selection
How we suggest working through a choice.
- Start with the limb and the socket system, not the product name.
- Define the movement that is limited today: sitting, stairs, cycling, standing from low seats.
- Decide what the liner must protect: distal end, tibial crest, scar tissue, volume change.
- Choose the formula for that purpose, then the size, then the sleeve or brim interface.
- Change one variable at a time so the follow-up tells you something.
Sizing
Rules we do not want you to guess.
- Measure circumference at the specified distance from the distal end, on the rectified shape.
- For TF brims, the rectified mould circumference should not exceed the brim circumference by more than 2–3 cm.
- If a measurement falls between two sizes, decide by tissue quality and volume trend, not by rounding.
- Document the measurement you used, so a size change later is an experiment and not a restart.
Range
Current products.
Nord° Liner 2.1 NF-34
A 3 mm TT cushion liner that retrofits one of the most common standard profiles on the market.
- Formula
- NF-34 custom blend TPE
- Intended for
- All types of activities
Nord° Liner 2.2 NF-29
A 6 mm uniform TT cushion liner that retrofits a commonly used profile, with a softer feel.
- Formula
- NF-29 custom blend TPE
- Intended for
- Everyday activities excluding sports
Nord° Liner 2.2 NF-34
The same 6 mm uniform TT geometry as the NF-29, formulated for a slightly firmer response.
- Formula
- NF-34 custom blend TPE
- Intended for
- All activities. Users preferring a slightly firmer feel
Nord° Liner 3.2 NF-53
A TF/AK vacuum liner with a V-shaped sealing membrane, designed to conform and stabilise in a balanced way.
- Formula
- NF-53 custom blend HQ TPE
- Intended for
- All types of activities
Nord° Sleeve 1.1 NF-29
A durable TPE and textile sleeve built for comfortable knee flexion, an airtight seal and effortless range of motion.
- Formula
- NF-29 custom blend TPE
- Intended for
- Everyday activities excluding sports
Nord° Sleeve 1.2 NF-34
A conical sleeve with a tapered wall thickness, for users who want a firmer response across all activities.
- Formula
- NF-34 custom blend TPE
- Intended for
- All types of activities
Nord° TF Brim 8.1 NFA-50
A prefabricated TF brim intended for a variety of socket designs and production techniques: flexibility for comfort, firmness for stability.
- Formula
- NFA-50 HQ TPE
- Intended for
- A variety of TF socket designs and production techniques
Clinical evidence
Cases and test series.
Downsizing and end-range flexion: one variable at a time
A single-user clinical case where sleeve size was the only variable changed, to separate habit from restriction.
2026-06-11
What changes after 90 days under load
A test series following material recovery and textile behaviour over 90 days of daily use.
2026-04-18
Put us to the test
Send us the fitting problem, not just the product code.
Tell us the limb, the movement that is limited and the size you are considering. You get a specific answer, a sample, or an honest 'we do not have data for that yet'.