- Pin the Right Front and Left Front to the Back, right sides together, aligning the shoulder edges

- Sew the shoulder seams with a straight stitch, 1 cm from the edge. Make sure to backstitch at the beginning and end, and trim any excess threads
- Raw edge version : since you didn't overlock your pieces earlier, now overlock these two shoulder seams using a zigzag stitch or a serger. Overlock both layers of fabric together; if needed, even out the edges with your scissors before overlocking
- Press the shoulder seams, pressing the seam allowances toward the back