Back Pocket Crossbody Bag: Made From Old Jeans

If you’ve ever looked at the back pocket of a pair of jeans and thought it deserved a second life, this is the project to start with. This crossbody bag uses the pocket as a built-in feature, giving you instant storage, structure, and that classic denim look without extra effort.

It’s one of the easiest ways to turn old jeans into something functional. The shape is simple, the sewing is straightforward, and the finished bag looks clean and intentional not overly “DIY.”

You’ll end up with a casual, everyday crossbody that’s perfect for errands, markets, or travel days when you just need the essentials.

Why You’ll Love This Bag

• Uses the existing pocket (less work, more detail)
• Beginner-friendly with minimal pattern cutting
• Durable and practical for everyday use
• High Pinterest appeal (denim texture and visible pocket detail)
• Easy to customize with straps, buttons, or patches

Materials You’ll Need

• Old pair of jeans (back pocket area)
• Extra denim (from the same jeans for the back panel)
• Lining fabric (cotton recommended)
• Crossbody strap (store-bought or DIY)
• Matching or contrast thread
• Fabric scissors or rotary cutter
• Pins or clips
• Sewing machine
• Measuring tape or ruler
• Iron
• Optional: magnetic snap, button, or zipper

To make things easier, I’ve gathered my go-to tools and supplies for denim projects in one place. Explore my DIY Denim Craft Essentials supply list!

(Disclaimer: As an Amazon Associate, I earn from qualifying purchases. If you purchase through links on this website.)

Cutting and Layout

You’ll be working around the existing pocket rather than starting from scratch.

Front Panel (Pocket Section)

• Cut a rectangle around the back pocket:
• Approx. 25 cm x 30 cm (10 x 12 inches)
• Make sure the pocket sits centered with enough seam allowance

Back Panel

• Cut one matching rectangle from denim

Lining Pieces

• Cut 2 pieces the same size as your front/back panels

Strap (if making your own)

• Cut 1 long strip: 8 cm x 110–120 cm (3 x 43–47 inches)
• Adjust length to suit your height

Step-by-Step Instructions

Prepare the Pocket Panel

• Trim your denim so the pocket sits neatly within your panel
• Reinforce the top corners of the pocket with a few extra stitches
• Press flat

 (Optional) Add Closure

• Attach a magnetic snap or sew a button above the pocket
• This helps keep contents secure without changing the design too much

Make the Strap (Skip if Using Pre-Made)

• Fold strap lengthwise, right sides together
• Sew along the long edge
• Turn right side out
• Press flat
• Optional: topstitch for a polished finish

Assemble the Outer Bag

• Place front (pocket panel) and back panel right sides together
• Sew down both sides and across the bottom (1 cm seam allowance)

Box the Corners (Optional but Recommended)

• Flatten each bottom corner so side and bottom seams align
• Measure about 4–5 cm (1.5–2 inches) from the tip
• Sew straight across
• Repeat on the other side

This gives your bag more depth and structure

Sew the Lining

• Place lining pieces right sides together
• Sew sides and bottom
• Leave a small gap at the bottom for turning

Attach the Strap

• Position strap ends at the top of the outer bag
• Place them about 5–7 cm (2–3 inches) from each side seam
• Make sure the strap isn’t twisted
• Baste or pin in place

Join Lining and Outer Bag

• Place outer bag inside the lining (right sides facing)
• Sew all the way around the top edge

Turn and Finish

• Pull the bag through the gap in the lining
• Close the gap with a small seam
• Push lining inside the bag

Final Press

• Press the top edge neatly
• Shape corners
• Optional: topstitch around the top edge for a clean finish

Pro Tip: Keep the original stitching on the pocket visible it adds that authentic denim look that makes the bag feel store-bought rather than handmade.

Crossbody Bag Variations to Suit Your Style

Once you’ve made one, it’s easy to start experimenting.

Switching up the denim wash deep indigo, faded blue, or even charcoal completely changes the look while keeping the same structure. You can keep the design minimal or lean into a more relaxed, worn-in feel depending on the fabric you choose.

Pocket choice also plays a big role. A classic stitched back pocket adds character instantly, while a plain panel gives a cleaner, more modern finish. You can also adjust the shape keep it slim and vertical for essentials, or widen it slightly for a more everyday carry.

Straps are another easy upgrade. A matching denim strap keeps everything cohesive, while a contrasting fabric or repurposed belt adds interest. For closures, you can leave it open for a casual feel or add a button, zipper, or flap for extra security.

These small changes let you tailor the bag to your routine without making the process more complicated.

Time, Pricing, and Selling This Bag

One of the best things about this crossbody denim bag is how realistic it is to make and sell even if you’re just starting out.

Time to Make

Once you’ve made your first bag and understand the steps, this is a surprisingly quick project.

• Beginner: 1.5 to 2 hours
• After a few makes: 45–60 minutes
• Batch sewing (2–3 bags): Around 2 hours total

Because you’re using an existing pocket and simple shapes, there’s less measuring and cutting compared to most bag projects. That makes it ideal for repeat making or small-batch production.

Pricing Your Denim Crossbody Bag

Pricing will depend on your finish, materials, and how you position your product but denim bags like this sit comfortably in the handmade market.

Typical pricing range:

• Basic version: $25–$35
• Lined + adjustable strap: $35–$50
• Styled/custom (patchwork, embellishments, premium hardware): $50–$75+

If you’re using recycled jeans, your material costs stay low, which gives you a strong profit margin even at entry-level pricing.

Selling Tips That Actually Work

This style of bag has strong appeal because it hits three key trends: sustainable, practical, and handmade.

Here’s how to lean into that:

Highlight the “Made From Old Jeans” Story
People love knowing their bag has a past life. Mention recycled denim, repurposed materials, or “one-of-a-kind from vintage jeans.”

Keep Each Bag Slightly Unique
Different washes, pocket styles, and stitching details make every piece feel special and that helps justify higher pricing.

Offer Simple Variations

• Adjustable vs fixed strap
• Zipper vs open pocket
• Light wash vs dark denim

Even small choices make buyers feel like they’re getting something personal.

Bundle for Higher Value
Pair the bag with:

• A matching coin pouch
• A simple denim key holder
• Or a small gift set

This works especially well for markets and gift shoppers.

Where This Bag Sells Best

• Farmers markets and handmade stalls
• Etsy or online handmade shops
• Pinterest-driven product pages
• Gift-focused pop-ups and seasonal markets

This is the kind of product people pick up because it feels useful, familiar, and easy to wear not overly styled or complicated.

Wrapping Up

Working with old denim has a way of slowing things down in the best way. You’re not just making something new you’re reshaping something familiar into something useful.

A back pocket crossbody bag is one of those projects that feels simple but stays with you. It’s practical, easy to wear, and carries that subtle sense of “I made this” without trying too hard.

Start with one pair of jeans, take it step by step, and you’ll quickly find your rhythm.

• If you’re not quite ready to cut into your denim yet, you might enjoy exploring more creative ways to repurpose old jeans before choosing your first project.
• You will also love this article Easy to Sew Tote Bags: Beginner-Friendly Ideas!