DIY Crossbody Cell Phone Case You Can Sew (No Hardware Needed)

A practical DIY crossbody cell phone case with built-in handles, cushioned protection, and pockets for your essentials—perfect for everyday use.

A practical, hands-free phone case with pockets, cushioning, and built-in straps for everyday use

Dear Readers and Subscribers,

If you’re like me, you don’t always want to carry a full purse just to run errands. Sometimes all you need is your phone, a card, and maybe your sunglasses—and that’s exactly what this DIY project is designed for.

In this tutorial, I’m going to show you how to sew a crossbody-style cell phone case that hangs comfortably in front of your body like a necklace. It’s secure, lightweight, and best of all—you don’t need any hardware unless you want to add it.

This case is cushioned for protection, has a back pocket for essentials, and even includes a front pocket for sunglasses. It’s simple, practical, and something you’ll use every day.

Why You’ll Love This Project

No hardware required (but optional if you prefer it)

Built-in straps for a clean, minimal look

Lightweight and comfortable to wear

Keeps your hands free while shopping or walking

Great for gifts or selling in your shop

Best Fabrics to Use

This project works beautifully with sturdy, everyday fabrics:

Canvas (great for durability)

Denim (perfect for structure)

Medium-weight cotton

Cotton blends

For the lining, use quilting cotton or a similar lightweight fabric.

Materials Needed

Outer fabric (canvas, denim, or cotton blend)

Lining fabric

Cotton batting or foam interfacing (for cushioning)

Thread

Sewing machine

Scissors or rotary cutter

Pins or clips

Iron

Optional:

Magnetic snap or Velcro (if you want closure)

D-rings or clips (if you prefer removable straps)

Cutting Guide (Adjust to Your Phone Size)

You can customize this based on your phone, but here’s a standard size:

Main body (outer + lining): 7" x 9" (cut 2 each)

Batting/interfacing: 7" x 9" (cut 2)

Back pocket: 7" x 5"

Front pocket (sunglasses): 7" x 6"

Straps (cut 2): 2" x 45" (adjust length as needed)

Step 1: Prepare the Layers

Layer your outer fabric with batting and quilt lightly if desired. This gives your phone case structure and protection.

Press everything well before sewing—this makes a big difference in the final look.

Step 2: Sew the Pockets

Back Pocket (for cards and cash)

Fold the top edge down ½" twice and stitch

Place it on the back panel and sew around the sides and bottom

Front Pocket (for sunglasses)

Finish the top edge the same way

Attach to the front panel

Make sure both pockets are secure and straight—this is where function meets design.

If you enjoy practical sewing projects like this, take a look at my shop at The Needle Market, where you’ll find sewing patterns, fabrics, and notions designed for everyday living.

And if you haven’t already, be sure to subscribe to The Designer's Needle in the sidebar so you don’t miss new tutorials, sewing ideas, and patterns.

Step 3: Create the Built-In Straps

This is what makes this project unique.

Fold each strap lengthwise, right sides together

Stitch along the long edge

Turn the right side out and press

Now you have two clean straps—no hardware needed.

Step 4: Attach the Straps

Position the straps at the top of the front panel:

Place each strap end about 1–1.5 inches from the side edges

Baste them in place

Make sure they are not twisted before sewing—this is important.

Step 5: Assemble the Case

Place the front and back pieces right sides together

Sandwich the straps inside

Sew around the sides and bottom

Leave the top open

Repeat with the lining (without straps), leaving a small turning gap at the bottom.

Step 6: Finish and Turn

Insert the outer case into the lining (right sides together)

Sew around the top edge

Turn the right side out through the lining gap

Close the gap with a topstitch

Press well for a clean, professional finish.

Optional Add-Ons

Add Velcro or a snap closure for extra security

Topstitch around the edges for durability

Add decorative stitching or contrast fabric

Use patchwork for a one-of-a-kind look

Ways to Style and Use It

This isn’t just a phone case—it’s a lifestyle piece.

Wear it crossbody while shopping

Use it for travel or walking

Keep essentials close without carrying a purse

Make several to match different outfits

A Thought for Sewists Who Sell

This is the kind of item that sells well because it solves a real problem.

You can:

Offer different fabric styles (denim, floral, neutral)

Create seasonal versions

Bundle with matching tote bags or aprons

It’s small, easy to batch sew, and perfect for repeat buyers.

Sometimes the simplest projects are the ones we use the most—and this is one of them.

Once you make one, you’ll probably want a few more.