Convertible Backpack Mini & Maxi PDF Sewing Pattern

Convertible Backpack Bag – PDF Sewing Pattern

Create your own stylish 2-in-1 convertible backpack and shoulder bag with this PDF sewing pattern from KSTN.studio. Featuring a soft, padded construction, adjustable straps, and a versatile design, this bag easily transforms from an everyday handbag into a practical backpack.

Choose between MINI and MAXI sizes and create a unique handmade accessory using cozy bouclé, teddy fabric, or your favorite material.

Perfect for everyday use, travel, and winter outfits.

WHAT'S INCLUDED

• Digital PDF sewing pattern in A4, US Letter & A0 formats

• Two bag sizes: MINI & MAXI

• Step-by-step video sewing tutorial

• FREE BONUS: Winter mittens PDF sewing pattern

• Instant digital download after purchase

Video Tutorial: https://youtu.be/M0F4svfj50Q

BAG FEATURES

• Convertible 2-in-1 bag and backpack design

• Two sizes included: MINI and MAXI

• Four carrying options: handbag, shoulder bag, crossbody bag, or backpack

• Adjustable strap system

• Soft, padded construction

• Fully lined interior

• Integrated drawstring inner bag

• Magnetic snap closure

• Optional decorative fabric flower

• Cozy, textured design for everyday use

FINISHED BAG SIZE

MINI SIZE

• Top Width: approx. 36 cm (14.17 in)

• Bottom Width: approx. 28 cm (11.02 in)

• Height: approx. 32 cm (12.60 in)

• Depth: approx. 12 cm (4.72 in)

MAXI SIZE

• Top Width: approx. 43 cm (16.93 in)

• Bottom Width: approx. 35 cm (13.78 in)

• Height: approx. 40 cm (15.75 in)

• Depth: approx. 12 cm (4.72 in)

Finished dimensions may vary slightly depending on the fabric, padding, and construction methods used.

FABRIC REQUIREMENTS

Based on fabric 145 cm (57 in) wide:

MINI SIZE

• Main Fabric: 40 cm (15.75 in)

• Batting: 40 cm (15.75 in)

• Lining Fabric: 30 cm (11.81 in)

• Contrast Fabric: 70 cm (27.56 in)

MAXI SIZE

• Main Fabric: 65 cm (25.59 in)

• Batting: 65 cm (25.59 in)

• Lining Fabric: 35 cm (13.78 in)

• Contrast Fabric: 80 cm (31.50 in)

The contrast fabric is used for the straps, inner drawstring bag, and rectangular ring holders.

Additional Supplies:

• Batting, 1.5–2 cm thick

• 5 rectangular rings

• 2 strap sliders

• 1 magnetic snap

• 2 metal eyelets / grommets

• 150 cm (59 in) of cord

Suggested Fabrics:

• Bouclé

• Teddy / faux shearling fabric

• Denim

• Canvas

• Other suitable medium-weight fabrics

Soft, textured fabrics work beautifully for creating the bag's cozy, padded appearance.

We recommend purchasing at least 10% extra fabric.

FREE BONUS – WINTER MITTENS PATTERN

Your purchase also includes a FREE winter mittens PDF sewing pattern.

A lovely extra project for creating cozy winter accessories or handmade gifts.

SKILL LEVEL

Beginner-Friendly / Confident Beginner

This project is suitable for sewists with basic sewing machine skills.

The step-by-step video tutorial guides you through the construction process, including the padded body, inner drawstring bag, and convertible strap system.

GOOD TO KNOW

• Create a versatile bag that can also be worn as a backpack

• Both MINI and MAXI sizes are included

• Customize your bag with different fabrics and colors

• Add an optional decorative flower for a unique finish

• Finished bags made using this pattern may be sold

• The PDF pattern files may not be copied, shared, resold, or redistributed

IMPORTANT

This is a DIGITAL PDF SEWING PATTERN, not a finished bag or backpack. No physical item will be shipped.

Your pattern files will be available for download after purchase.

Designed by KSTN.studio – Create something uniquely yours.