How to Make a Cross Body Purse | Sewing Your Own Bag

Making a crossbody purse is one of the most rewarding beginner-to-intermediate sewing projects because it delivers a polished, usable bag in an afternoon. The core process stays consistent across patterns: cut your pieces, build the pockets and zipper, join the body panels, attach the strap, and finish the seams. What changes between tutorials is the sizing, seam allowances, and construction order, so the smartest approach is to pick one pattern and follow it exactly. The result is a custom bag sized for your phone, keys, and wallet that costs a fraction of store-bought versions.

What You Need to Sew a Crossbody Bag

Before cutting anything, gather your materials. The list is short and most sewists already own the essentials.

• Outer fabric — cotton canvas, quilting cotton, or home decor weight
• Lining fabric — quilting cotton works well
• Fusible interfacing — medium weight for structure
• One zipper — lengths vary by pattern; SewCanShe’s free pattern uses a 12 3/4-inch zipper
• Strap material — SewCanShe’s pattern uses a 4-inch by 60-inch fabric rectangle
• Matching thread, fabric scissors, pins, and a sewing machine

If you are buying supplies for the first time, a rotary cutter and mat make cutting straight lines easier, but scissors work fine. Lightweight pocket fabric may need fusible interfacing for stability, so test your fabric’s stiffness before committing.

Cutting the Pattern Pieces Correctly

Printing and cutting your pattern accurately is where most crossbody projects go wrong. If your pattern prints on multiple pages, assemble them by matching the letter pairs in the corner triangles before cutting.

Once assembled, cut the pieces your pattern calls for. A typical layout from Ail Wilson’s tutorial includes cutting 2 main bag pieces from outer fabric, 2 from lining, and 2 from interfacing, plus pocket pieces. Her dimensions measure a main bag of 27 cm by 37 cm with an outer pocket of 24 cm by 17 cm. Spoonflower’s pattern uses pieces numbered 1 through 7, while MindyMakes follows the standard download-print-cut sequence. The exact pieces differ, but the principle holds: mark everything clearly and cut precisely.

Fuse the interfacing to the required pieces before sewing. Follow the manufacturer’s heat settings — too cool and it lifts, too hot and it warps the fabric.

Assembling the Pockets, Zipper, and Body

Construction happens in layers: pockets first, then the zipper, then the body. SewCanShe’s free pattern starts by attaching the zipper to the front panel, adding the pocket lining, sewing gusset piping, and turning the exterior right side out before joining lining and exterior at the top edge. The strap piece folds lengthwise, presses, and gets topstitched along both long edges.

Pocket construction varies by pattern. Ail Wilson’s method sews a zipper opening into the pocket itself, then attaches zip pieces to the top of the bag before finishing the top edge with bias binding.

When joining the body panels, watch your seam allowances closely. Current tutorials use 1/4 inch, 3/8 inch, 1/2 inch, and 1 cm depending on the step and source, so follow your chosen pattern’s numbers.

Finishing the Strap and Closing the Bag

The strap is the last major component. SewCanShe’s pattern makes the strap from a 60-inch fabric rectangle folded lengthwise, pressed, and topstitched on both long edges. Some patterns use ready-made webbing or a chain strap. Attach the strap ends securely at the side seams before the final closure, and double-stitch the attachment points because they bear the bag’s weight.

Finish by turning the bag right side out through the zipper opening, pressing all seams, and topstitching the edges for a professional look. If your pattern includes a lining bag method, join the lining and exterior at the top edge, leaving a small opening to turn through, then close that opening by hand or machine stitching.

For a bag built to hold real essentials, check out our tested picks in the best crossbody purse for moms roundup — it compares durability, strap length, and pocket layouts if you’d rather buy than sew.