Trio Sling Bag Three In One Sewing Pattern by Kandou Patterns
Trio Sling Bag Three In One Sewing Pattern – One Smart Design, Worn Two Different Ways
The TRIO Sling Bag / Backpack Sewing Pattern by Kandou Patterns is a versatile, unisex design that gives you two styling options in one pattern. Make it as a sleek mono strap sling bag with a bold, modern look, or sew it as a compact backpack with two slimmer removable straps. Either way, you get a structured, practical bag built with professional techniques.
Why We Love This Pattern
This pattern combines clean structure with functional details. The quilted chevron back panel adds rigidity and protects the contents while giving the bag a contemporary finish. The ability to switch between sling and backpack styles makes it especially appealing for everyday wear, travel, or hands free outings.
Finished Size
- 7 1/2 inches long
- 11 inches high
- 2 3/4 inches deep at the base
This size is slightly larger than the Pebble Sling Bag and is designed to hold a regular water bottle along with other daily essentials.
Key Features
- Can be made as a fixed mono strap sling bag or as a backpack
- Fully lined interior with bound seams for strength and structure
- Front zipper pocket sized to fit a standard phone
- Two internal pockets including a slip pocket and a zipper pocket
- Quilted chevron padded back panel for added comfort and rigidity
- Adjustable webbing straps
- Wide strap for sling version
- Two slimmer removable straps for backpack version
- Classic boxy silhouette with roomy interior
Skill Level
This pattern is rated Intermediate. It is best suited to sewists who are comfortable installing zippers, sewing through multiple layers, and maintaining accurate seam allowances. The patchwork style construction rewards careful sewing, and the detailed instructions with colour photos guide you through every step.
Materials Needed
To make one bag, you will need:
- Exterior fabric, 1/2 yard
- Lining fabric, 3/4 yard
- Fusible woven interfacing, approximately 1 3/4 yards or 1 1/4 yards depending on width
- Fusible fleece, 1/2 yard
- Fusible foam piece for back panel, 9 x 12 inches
- Firm fusible interfacing, one 5 inch square
A full materials and sundries list is included in the pattern instructions.
What Is Included in the Pattern
This is a digital sewing pattern written in English with all measurements in inches. You will receive:
- 25 pages of clear step by step instructions with colour photos
- A second PDF file containing full scale professionally drawn templates
- Templates designed to print on a domestic printer
- Optional A0 print shop version available on request
The instructions include guidance for both strap versions and a quick tutorial on making your own bias binding tape.
Perfect For
This pattern is ideal for:
- Everyday hands free wear
- Travel and commuting
- Scrap friendly patchwork layouts
- Unisex styling
- Makers who enjoy professional bag finishes with bound seams
Why You Will Love Making It
The TRIO Sling Bag / Backpack offers variety without sacrificing polish. From quilting the back panel to binding the seams inside, the construction feels intentional and refined. The finished bag looks structured and professional, while the dual wear options make it incredibly practical. It is a rewarding sew that results in a bag you will genuinely use.
