How to Sew Perfect Side Slant Pockets

Side slant pockets (also known as on-seam pockets or diagonal pockets) are a versatile and practical addition to garments like skirts, dresses, and pants. These pockets blend seamlessly into the side seam while providing convenient storage. They're the perfect combination of function and style - invisible when not in use but always ready when you need to slip your hands or small items inside. Let's walk through the process of adding these useful pockets to your next sewing project.

Why Add Side Slant Pockets?

They provide practical storage without disrupting your garment's silhouette
The diagonal opening makes them easy to slip your hands into
They're more secure than patch pockets as items are less likely to fall out
They add a professional, tailored touch to homemade garments

Materials You'll Need

Main fabric (your garment pieces)
Pocket fabric (can be self-fabric or lighter weight fabric)
Paper for creating pocket pattern pieces
Marking tools (chalk, washable marker, etc.)
Pins or clips
Iron and ironing board
Sewing machine
Thread

Creating Your Pocket Pattern

If your pattern doesn't include pocket pieces, you can easily draft them:

Draw a pocket shape that's roughly 6-7" wide and 8-9" deep (or to your preference)
Create a slightly curved bottom edge
Mark the pocket opening (usually 5-7" long)
Add seam allowances around all edges

Step-by-Step Instructions

Step 1: Mark Your Pocket Placement

Mark the pocket opening position on the right side of your front garment piece(s). This is typically 3-4" down from the waistline but check your pattern for specific placement. The opening should be at a comfortable angle for your hands.

Step 2: Prepare Your Pocket Pieces

Cut four pocket pieces total - two for each side. If using a lighter weight fabric for the pocket bags, use this for the inner pieces only.

Step 3: Attach Pocket Facing to Garment Front

With right sides together, align the straight edge of one pocket piece with the marked pocket opening on your garment front. Pin in place and sew along the pocket opening line.

Step 4: Press and Understitch

Press the pocket piece away from the garment. Understitch close to the seam through the pocket piece and seam allowance (but not through the garment) to prevent the pocket from rolling outward.

Step 5: Attach Pocket Facing to Garment Back

Repeat Steps 3-4 with your garment back piece and another pocket piece.

Step 6: Complete the Pocket Bag

Place your garment pieces right sides together, aligning the side seams. Pin around the outer edges of the pocket pieces. Sew around the entire pocket bag, starting and ending where the pocket meets the side seam.

Step 7: Sew the Side Seam

Sew the side seam of your garment, stopping when you reach the pocket, jumping over it, and continuing below the pocket. Be sure to backstitch where the pocket meets the side seam for reinforcement.

Step 8: Press the Finished Pocket

Press the side seam allowances open above and below the pocket. Press the pocket bag toward the front of the garment.

Tips for Professional Results

Interface the pocket opening area if using lightweight fabrics
Reinforce the top and bottom of the pocket opening with extra stitching or bar tacks
Consider using a lighter weight fabric for pocket bags to reduce bulk
Match patterns at the pocket opening for an invisible finish
Stay-stitch curved pocket edges to prevent stretching
Finish all raw edges with your preferred seam finish

Troubleshooting Common Issues

Gaping pocket openings: Add interfacing to stabilize or adjust the angle of the opening
Pocket bags showing through: Use a lighter fabric for the pocket bags or move them slightly toward the back
Pockets sagging: Reinforce the top of the pocket with stay tape or consider adding a smaller pocket bag
Bulky seams: Grade your seam allowances and consider using a lighter weight fabric for the pocket bags