The medi M.4s comfort is a rigid-frame knee brace with an anatomically pre-moulded frame, Physioglide hinges, numbered straps and padded contact surfaces. Its construction includes movable D-rings, split strap padding and an extended calf shell. The manufacturer lists separate left- and right-leg versions, six sizes from XS to XXL, and 41 cm and 34 cm frame-length variants. BFY can help confirm the exact length, side and available finish.
Anatomically pre-moulded rigid frame.
Physioglide hinge construction.
Movable D-rings and numbered straps.
Split strap padding and an extended calf shell.
Materials listed by the manufacturer: Avional, velours, polyester and PU foam.
Separate 41 cm M.4s comfort and 34 cm M.4s comfort short versions.
Left- and right-leg versions in sizes XS, S, M, L, XL and XXL.
Manufacturer photographs show black and white finishes; BFY can confirm current availability.
Product details and sizing stay here with BFY. This showcase is educational; your clinician guides product selection and use.
BFY / SIZING & FIT
Find your fit.
Product sizing information stays here with Befitting You. Our team can help confirm measurements and fitting requirements.
Use the chart for the exact frame-length version and measure thigh circumference at the stated point. Contact BFY for help confirming size, left or right side, frame length and current availability.
Measurement: Measure around the thigh at point kT, 15 cm above the knee-centre reference line shown in the manufacturer's measuring diagram. That diagram also labels the measuring offset as 6 inches. Record the thigh circumference in centimetres for this chart.
M.4s comfort — 41 cm version — sizing reference
Size
Thigh circumference (cm)
XS
31 - 37
S
37-45
M
45 - 51
L
51 - 57
XL
57 - 65
XXL
65 - 74
The listed frame length is 41 cm; it is not a circumference measurement.
The same thigh ranges are published for the left- and right-leg versions.
Only thigh circumference is tabulated. No knee or calf circumference selection ranges are supplied for this model.
Adjacent published ranges share boundary values. Ask BFY for assistance at a boundary or if the measurement is outside the listed ranges.
Article identifiers vary by regional catalog. BFY can confirm the exact 41 cm version and side.
Measurement: Measure around the thigh at point kT, 15 cm above the knee-centre reference line shown in the manufacturer's measuring diagram. That diagram also labels the measuring offset as 6 inches. Record the thigh circumference in centimetres for this chart.
M.4s comfort short — 34 cm version — sizing reference
Size
Thigh circumference (cm)
XS
31 - 37
S
37-45
M
45 - 51
L
51 - 57
XL
57 - 65
XXL
65 - 74
The listed frame length is 34 cm; this is the separate short version, not the 41 cm version.
The same thigh ranges are published for the left- and right-leg versions.
Only thigh circumference is tabulated. No knee or calf circumference selection ranges are supplied for this model.
Adjacent published ranges share boundary values. Ask BFY for assistance at a boundary or if the measurement is outside the listed ranges.
Article identifiers and short/compact naming vary by regional catalog. BFY can confirm the exact 34 cm version and side.
Sizing is a product reference, not a treatment recommendation or a guarantee of fit. If you are between ranges or unsure of a measurement, talk with BFY before choosing a size.
