Breg X2K Elbow — confirmed XS, S, and M sizing
Measurement: Circumference taken at mid-bicep and elbow. The manufacturer provides both inch and centimeter ranges; the values below are reproduced as published without conversion.
| Size | Bicep circumference (inches) | Bicep circumference (cm) | Elbow joint circumference (inches) | Elbow joint circumference (cm) |
|---|---|---|---|---|
| XS | 13–15.5 | 33–39 | 11–12.75 | 28–32 |
| S | 15.5–18 | 39–46 | 12.75–14.5 | 32–37 |
| M | 18–19.5 | 46–50 | 14.5–15.25 | 37–39 |
- The manufacturer lists XS, S, M, M+, and L in separate left- and right-arm configurations, using the same sizing chart for both sides.
- M+ and L rows are omitted because the manufacturer's published inch and centimeter bicep ranges are inconsistent.
- Contact BFY for fitting assistance for M+ or L, at shared range boundaries, or when the two circumference measurements fall in different size rows.

