Replacement strap for MUT 38?

[SCD]

Any advice on where to find a suitable replacement strap for my JLC MUT 38?
This would require...
- 21mm lug width
- Thin strap...especially thin where it slides into JLC's very slim deployant clasp.
- Shorter length rather than longer...<or=190mm. I have a skinny wrist.

I prefer...
- black or dark brown
- matte finish.
- straight spingbars...I mildly prefer this over the curved look of the original...either is fine.
- calf or fake gator...straps should be cheap, but anything's cheaper than JLC's strap, so gator would be okay.

Haven't been able to find anything quite like this.

?