Bio-Mex is a new addition to the Bio-Range family. It is made from a high-quality polypropylene making it slender, flexible and strong for excellent biomechanical control.

Patients are unique so Bio-Mex can also be easily modified into a more bespoke device with self-adhesive additions and/or heat moulding and grinding. This prefabricated orthotic also comes in 2 densities and a choice of 2 arch heights which means they are suitable for a wide spectrum of patients at a fraction of the price of custom made orthoses.


Key Features

  • 2 arch heights and 2 densities available:
    • Medium arch, low density – Good control with more flexibility
    • Medium arch, high density – All round high-level control
    • Low arch, low density - Flexible control for patients who may have a pes planus foot type and compromised ROM
    • Low arch, high density – Moderate control for patients with a pes planus foot profile


  • Easily adaptable to combat a wide range of conditions. Components include:
    • 2˚, 4˚ and 6˚ Rearfoot Wedges
    • 5mm Heel Lifts
    • Heel Cushions
    • Full-Length EVA Top Covers


Ideal for

  • Patients needing stronger control than an EVA device
  • Better shoe fit (greater patient comfort and compliance)
    • Not reliant on shoe shank
    • Slimmer and easier to fit
  • Longer durability for patients who wear devices out quickly
  • Heavier patients
  • Patients who may normally require casting for a polypropylene orthotic


Treatment Tips

  1. While your clinical judgement concerning the patient in front of you is the best advocate for selecting the most appropriate device; the following tests can act as a guide:
    • Supination Resistance Test
      • High Supination Resistance = High Density Bio-Mex
      • Low Supination Resistance = Low Density Bio-Mex
    • Navicular Drift & Drop
      • More drop than drift = Medium Arch Bio-Mex
      • Equal drop and drift = Either device (depending on other findings)
      • More drift than drop = Low Arch Bio-Mex
  1. To add a 1st met cut out to the shell, try heat moulding the shell and cutting it with sharp scissors; or using a grinder to grind away the area you want to be removed.
  2. Many “At Risk Patients” will also benefit from a more rigid polypropylene device; especially those in the early stages of rheumatoid arthritis. Make use of the full-length EVA top cover which is included, by adding additional forefoot padding and offloading alongside the polypropylene rearfoot correction. This can be achieved with semi compressed felt or self-adhesive PPT and can be bespoke for that particular patient.