#10 -Juki MF-3620 4 Needle Flatseamer:
The Juki MF- 3620 is a four needle flatseamer that places one edge inside a folded edge of the fabric, then stitching the fabric down. This re-enforces the raw edges from fraying.
The four needle flatseamer is the type of seam used for yoga pants and for other knitwear products. We only keep black and white thread on hand, so you will want to bring your own matching thread cone(s).