View photos of each style. This is product information, not an order selection.
OA Bracing
Compare Your Options.
The medi M.4s OA comfort family brings Comfort and Comfort Compact together on one page. Each style keeps its own product photographs, physical construction details and available sizing and fitting information.
Two distinct informational styles: Comfort and Comfort Compact.
Original model-specific photographs and construction details for each style.
Separate sizing and fitting references; one model's chart does not apply to the other.
One family. Your options.
Compare product information here. Your clinician guides the support and fit; this is not online ordering.
Comfort
The medi M.4s OA comfort has a lightweight, anatomically pre-shaped rigid frame with two side uprights and an open-knee design. Its construction includes a movable thigh shell, numbered straps, movable D-rings and double-layered condylar pad covers.
Lightweight, anatomically pre-shaped rigid frame with two side uprights.
Movable thigh shell and movable strap D-rings.
Numbered straps and padded frame sections.
Double-layered condylar pad covers and a separate pad set.
Flex-bar construction and a hinged thigh bar.
Separate left and right configurations, each in varus and valgus versions.
The medi M.4s OA comfort compact has a lightweight double-upright frame with an open-knee design, a hinged thigh bar, numbered straps and soft-grip padding. Its construction includes a flexible side bar and an integrated varus/valgus mechanism.
Lightweight, moldable double-upright frame.
Compact short-frame configuration, published as 34 cm long.
Hinged thigh bar and flexible side bar.
Numbered straps and soft-grip padding.
Integrated varus/valgus mechanism.
Published configurations: Left Varus, Right Varus, Left Valgus and Right Valgus.
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.
Comfort: BFY can help confirm the size, length and configuration in person, particularly at shared size boundaries or where the printed centimeter and inch ranges differ. Comfort Compact: Published compact circumference ranges are available, but BFY should confirm the measurement location, size and left/right varus or valgus configuration in person. Ask BFY for size confirmation at shared boundaries, within the published inch gap or outside these ranges.
Comfort — M.4s OA comfort — standard, 41 cm length
Comfort
Measurement: Circumference of the thigh 6 inches (15 cm) above the center of the patella, measured at the medial side of the thigh. The USA chart publishes both centimeter and inch ranges.
Comfort — M.4s OA comfort — standard, 41 cm length — sizing reference
Size
Thigh circumference (cm)
Thigh circumference (inches)
XS
31–37
12 ¼–14 ½
S
37–45
14 ½–17 ¾
M
45–51
17 ¾–20
L
51–57
20–22 ½
XL
57–65
22 ½–25
2X
65–74
25 ½–29
The USA comfort chart publishes these same ranges for Right Varus, Right Valgus, Left Varus and Left Valgus configurations.
The standard 41 cm designation is confirmed by the international exact comfort table and its matching G527/G528 article-number families. The USA image itself does not print a brace length.
Both sets of units and the size label 2X are retained as printed in the USA chart; the international comfort table calls the largest size XXL.
The printed inch ranges leave a gap between XL and 2X and are not exact conversions of the centimeter ranges. No conversion or missing range has been invented.
Adjacent centimeter ranges share boundary values. The source does not provide a boundary-selection rule.
Comfort Compact — M.4s OA Comfort Compact — published circumference ranges
Comfort Compact
Measurement: Thigh circumference. The exact current USA Comfort Compact table publishes centimeter and inch ranges but does not state the measurement height. The manufacturer's matching short-configuration table labels the measuring point kT without defining its location in the extracted text. Measurement-location confirmation is required.
Comfort Compact — M.4s OA Comfort Compact — published circumference ranges — sizing reference
Size
Circumference (cm)
Circumference (inches)
XS
31–37
12 1/4–14 1/2
S
37–45
14 1/2–17 3/4
M
45–51
17 3/4–20
L
51–57
20–22 1/2
XL
57–65
22 1/2–25
2X
65–74
25 1/2–29
All six rows are visually verified in the exact current manufacturer table titled M.4s OA Comfort Compact; the partial status concerns the unverified measurement location, not the circumference rows.
The current table gives the same ranges for Right Varus (medial), Right Valgus (lateral), Left Varus (medial) and Left Valgus (lateral). These are published configuration distinctions, not additional showcase variants.
Both original unit columns are retained exactly as published; no conversions or corrections have been added.
The current inch column ends XL at 25 inches and begins 2X at 25 1/2 inches. This published gap has not been filled or silently changed.
Adjacent centimeter ranges share boundary values; no boundary-priority rule is supplied.
The older chart titled M.4s OA compact uses different identifiers and an XL upper inch value of 25 1/2. Its measurement location and inch value have not been transferred to this Comfort Compact chart.
The international manufacturer names the matching compact length short, 34 cm, and labels the largest size XXL rather than the USA table's 2X. Only the short-configuration identity and ranges were used; no standard-length chart was imported.
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.
