A lightweight, high-torque tricompartment unloader that takes up to 40 lb off the knee. Custom made from a 3D scan, or off the shelf in five sizes as the Ascender 3.
Ascender 3 OTS: $2,000.00 CAD

A tricompartment unloader for anterior knee pain and OA in the medial, lateral or patellofemoral compartment. The energy-return hinge works like an external muscle-tendon system, and the patented tensioning dial lets the wearer engage, adjust and release support in seconds.




Indications are from Icarus Medical. Contraindications are general guidance from Dynamic Lab Services and don’t replace an assessment. If any apply to you, or you’re not sure, talk to your clinician before using this brace.

The Ascender 3, off the shelf. A lightweight, high-torque tricompartment unloader with the patented tensioning dial, for the left or right knee.
Choose your side and size at checkout. Not sure about sizing? Use the size guide below, or find a clinic for a fitting.
Clinic? Sign in to order at your account price.
Covers manufacturing and material defects from the date of purchase. Normal wear and tear is not covered, and the warranty ends if anyone other than your clinician modifies the brace.
Measure the thigh 6" above and the calf 6" below the knee centre. Caliper readings are optional but help find the best fit.
| Size | Thigh | Knee centre | Calf | Knee caliper |
|---|---|---|---|---|
| XS | 13.0" to 14.5" | 9.0" to 11.0" | 9.0" to 11.0" | 3.0" to 3.5" |
| S | 14.5" to 17.0" | 11.0" to 12.5" | 11.0" to 13.0" | 3.5" to 4.0" |
| M | 17.0" to 19.0" | 12.5" to 14.5" | 13.0" to 14.5" | 4.0" to 4.5" |
| L | 19.0" to 20.5" | 14.5" to 16.0" | 14.5" to 16.0" | 4.5" to 5.0" |
| XL | 20.5" to 22.5" | 16.0" to 17.5" | 16.0" to 17.5" | 5.0" to 5.5" |
Custom Ascender: made for your patient from an iPhone scan and 3D printed by Icarus Medical, with the unloading you prescribe on the order form.
Patients: find an Icarus provider, or tell us where you are and we’ll connect you with your closest clinic. Clinic without a DLS account? Register your clinic.
Covers manufacturing and material defects from the date of purchase. Normal wear and tear is not covered, and the warranty ends if anyone other than your clinician modifies the brace.
We’re the Canadian distributor for Icarus Medical. Email us and a DLS specialist will help you choose.