Sew a simple drawstring backpack for school supplies

A lightweight drawstring backpack is a practical beginner sewing project and a cheerful way to prepare for a new school term. It holds notebooks, pencils, a lunch box, or a favorite handmade toy, while the simple shape leaves plenty of room for color and personality.

This fabric backpack requires only a few basic supplies and straight seams. The finished bag can be sized for a child, adapted for older students, or made smaller for library books, dance shoes, or craft materials.

Choose washable cotton, canvas, or a quilting-weight fabric with a fun print. With careful measuring and a little pressing between steps, even a first-time sewist can create a sturdy school accessory in an afternoon.

Gather fabric and sewing supplies

For a child-sized bag, prepare two fabric rectangles measuring approximately 13 by 16 inches. Cotton fabric is easy to sew, while lightweight canvas gives the backpack extra strength. If the fabric is thin, add a lining or iron-on interfacing to the wrong side before cutting.

You will also need matching or contrasting thread, fabric scissors, pins or clips, an iron, a ruler, and a sewing machine. Two pieces of cotton cord or sturdy ribbon, each about 28 to 32 inches long, will form the shoulder straps. A safety pin or bodkin makes threading the cords through the casing much easier.

Wash and dry the fabric before cutting so later shrinkage does not distort the bag. Trim away loose threads, and check that both rectangles have straight edges. A rotary cutter and cutting mat can help, but they are not essential for this project.

Cut and prepare the backpack pieces

Place the fabric with the right sides together and align the edges. The 13-inch sides will become the top and bottom width, while the 16-inch sides will form the height. If your fabric has a directional pattern, make sure the design points upward on both pieces.

At the top of each rectangle, fold the raw edge toward the wrong side by half an inch and press. Fold it again by one inch and press firmly. This double fold creates a clean casing for the drawstring. Set the pieces aside while you mark the lower corners.

For a stronger base, measure a 1-inch square from each bottom corner and mark it with a washable pen. These squares will later be sewn and boxed to create a little depth. If you prefer a flat pouch, skip this step and keep the lower corners square.

Sew the bag body

Unfold the casing temporarily, then pin the two fabric rectangles together with their right sides facing inward. Sew down both side seams and across the bottom, using a seam allowance of about half an inch. Backstitch at the beginning and end of every seam to keep the stitches secure.

Finish the raw edges with a zigzag stitch, overlock machine, or pinking shears. This reduces fraying, especially when the backpack will be opened and closed frequently. Press the seams flat before turning the bag right side out.

To box the corners, pinch one lower corner so that the side seam sits directly on top of the bottom seam. Flatten the corner into a triangle, then stitch across the marked 1-inch line. Trim the excess fabric, leaving a small seam allowance, and repeat on the other side. Turn the backpack right side out and push out each corner carefully.

Project detail Recommended choice Easy variation
Main fabric Quilting cotton Lightweight canvas
Finished size About 12 by 15 inches Use larger rectangles for sports gear
Seam allowance 1/2 inch Mark it with a removable fabric pen
Drawstring Cotton cord or ribbon Soft shoelace-style cord
Closure Double drawstring Single cord for a small pouch
Decoration Appliqué, trim, or fabric paint Personalized paper tag

Create a neat drawstring casing

Fold the pressed top edge down along the existing creases. Stitch around the bag just below the lower folded edge, leaving a continuous tunnel between the stitches and the top edge. Sew slowly over the side seams because several fabric layers meet in those areas.

For a polished finish, stitch a second line close to the top fold. This is optional, but it helps the casing keep its shape and gives the backpack a tidy handmade appearance. Keep both lines level so the cords can slide freely without catching.

Attach a safety pin to one cord and guide it through the casing, entering and exiting through the same opening. Tie the two ends together securely. Thread the second cord through the opposite direction, then tie its ends. The two loops should create shoulder straps, with one cord passing along each side of the bag.

Add practical details and personality

Before trimming the cords, test the backpack on its intended wearer. The straps should sit comfortably over the shoulders without dragging on the floor. Tie large, secure knots at the lower corners or sew the cord ends into the side seams for additional security. For very young children, supervise use and avoid excessively long loose cords.

Personalization can be as simple as adding an initial, a bright fabric patch, or a strip of ribbon before sewing the bag together. Felt shapes, embroidered stars, and washable fabric markers also work well. Keep decorations firmly attached so they do not become loose during daily use.

A matching name tag makes the backpack easy to identify. Create one from scrap fabric, or pair the sewing project with colorful ideas from these paper craft projects to make a laminated tag, pencil label, or tiny reward card for the first school week.

Choose the right fabric and finish

Dark, busy prints hide small marks, while solid fabrics make appliqué and embroidery stand out. For a school supply bag that will be used every day, select a tightly woven fabric and reinforce the upper corners with a small square of interfacing. This helps prevent stretching around the casing.

If the backpack will carry heavier items, sew a second line inside each side seam or use a shorter stitch length. You can also add a lining by cutting two additional rectangles and sewing them separately. Place the lining inside the outer bag with wrong sides together, then stitch around the top edge before forming the casing.

A quick final inspection is worthwhile. Check that all seams are closed, the casing is open at both ends, and the drawstrings move smoothly. Press the finished backpack, fill it with school supplies, and adjust the straps one last time.

Helpful choices for a smooth sewing session

This simple drawstring design is easy to repeat for siblings, classmates, or party favors. Change the dimensions, fabric, and decorations to create a whole set of useful handmade bags without learning a new construction method.

Choose a favorite fabric, cut the rectangles, and sew the first straight seams today. By the time school supplies are ready to pack, you will have a durable custom backpack made with your own hands.