A couple of things to keep in mind when sewing with knit...Let the material go at it's own pace when feeding through the machine. Use a zig zag stitch or a stretch stitch. This allows the seam to stretch unlike a straight stitch. A walking foot and a ball point needle help avoid puckering. However I didn't use either of these. I just worked with what I had. Knit doesn't fray! Another reason knit is awesome. Leave your edges raw if you like.