I put glue in the middle of the foam piece and then I sew the foam to the vest. But no every sew machine can do it without break the foam.
First I draw the piece on PVC and then I simply cut it with a cutter
I haven't have internet still today, and a new job as a doctor. I do this in my short leisure, and I don't have almost nothing. Sorry if I can't work or respond as soon as possible, but I can't do it faster