Pin the lace all the way around your hem. Keep in mind that the bottom edge of the lace will be the bottom edge of your hem.
Step 2: Sew the Lace
Using a short and narrow zigzag stitch, sew the lace all the way around along the top edge of the lace.
Step 3: Trim the Hem
Fold back the lace along the zigzag stitching, and trim along this line as close as possible without cutting the stitching or lace. When you're done, sew together the overlapping lace using the same zigzag stitch.