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Original Price: $10.74

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Retro Tech Backpack PATTERN: Unisex Sling Bag | Large Crossbody Backpack Tutorial | Digital File

Kandoupatterns  

You can only make an offer when buying a single item

Star Seller. This seller consistently earned 5-star reviews, shipped on time, and replied quickly to any messages they received.

Highlights

  • Designed by Kandoupatterns
  • Supplies for making crafts
  • Digital download
  • Digital file type(s): 3 PDF

SHOP MAIN PAGE - https://www.etsy.com/shop/Kandoupatterns

This is the Retro-Tec Sling Bag/Backpack SEWING PATTERN - an original sewing pattern, and NOT a finished item! The pattern is sold as a digital file, delivered to your purchase file when payment clears.

This is a fully illustrated sewing pattern, photo tutorial, written in English, and with full scale templates, for a practical and stylish single strap sling bag, OR A double strap conventional Backpack - A LARGER, Laptop version of our popular Retro Style Sling Bag.

The perfect design and pattern for customizing to create your own unique version! Instructions are given for making the bag either as a single strap Sling Bag, OR as a conventional double-strap backpack. Both versions will fit most 13" laptops, as well as a host of other items.

Skill Level: Intermediate/Advanced : good experience of bag making techniques, including sewing large items, curved seams, seam binding and sewing multiple layers. Please NOTE! This is NOT a beginner bag pattern. If you need advice choosing a pattern for your level, please get in touch.

Instructions written in ENGLISH ONLY with all measurements in inches.

-The strap can be attached to the left or right side of the bag to wear it as a sling bag over either shoulder - perfect for left and right-handers alike!

NOTE! This listing is for the larger Retro-Tec Convertible Bag ONLY - last photo for comparison with the Smaller Retro-Style Sling bag pattern, which can be purchased here -
https://www.etsy.com/listing/1112950773/retro-style-sling-bag-sewing-pattern

To see the full range of our bag patterns-https://www.etsy.com/uk/shop/Kandoupatterns

FINISHED DIMENSIONS (INCHES):
10.75 wide x 18 high x 4 deep.
Adjustable Backpack straps- 26-36"

Really practical and on-trend, this stylish sling bag has lots of great features that make it a great gift for family and friends -

SPECIAL FEATURES:-
-Exterior has 3 pockets - one slip pocket at front, and 2 zipper pockets (one on back for secure items)
-Interior has 3 pockets - one laptop pocket - fits most 13" laptops -maximum laptop size 12.5" x 9.5". One internal zipper pocket that fits an iPad, and one pen pocket.
- fully lined with internal bound seams that give a totally professional, beautiful finish.
- great structure and strength - made using professional bagmaking techniques -No domestic methods like birthing or pulling- This bag is made to be STRONG!

BONUS Extra! A cute PHONE CASE pattern is included, which you can make either as a separate item, or onto the sling bag strap as you make it - perfect for answering your phone on the go! It’s simple, novel and practical- everything I know you’ll love in a backpack or Sling!

This listing is a DIGITAL FILE: You will receive 3 files -
- A pattern instructions booklet with 40 pages of clear, easy to follow step-by-step instructions, with color photos illustrating how to make every element of this bag.
- A full set of professional computer-drawn templates, with printing instructions, and labels to attach to your pieces. Simply print at home, cut out, and assemble the templates yourself.
- An AO file of the templates is also included in this purchase, so if you don't like pasting pages together, you can take this file to your local print shop to be printed.

PLEASE NOTE! Due to the nature of the product, refunds cannot be offered on digital file products - please read this listing carefully before you purchase.

COPYRIGHT NOTICE: This pattern is protected by international copyright law and may not be distributed, resold or copied, either in whole or in part, or in any format. All rights reserved by Kandoucrafts. Permission is granted to make and sell this purse on a small, handmade scale (please credit kandoupatterns in all written material, including any Etsy listing descriptions...........................................................................................

GSPR Notice
Manufacturer: Kandou Crafts Ltd.
kandoupatterns.com
EU Responsible Person
EUComply OÜ
Parnu MNT 139b-14, 11317 Tallinn, Estonia
+33757690241
hello [!at] eucompliancepartner.com

GSPR documentation available upon request
..................................................................

SAFETY NOTICE: This pattern is intended for adult use only, and is not suitable for children. Always keep small components and sharp implements away from children at all times. Turn off sewing machine and pressing equipment when not in use.

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Reviews for this item

What buyers say, summarized by AI: Great pattern Clear instructions Love it Looks great Easy to use Great quality Helpful seller

4.9

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

(447 reviews)

4.9 Item quality
4.9 Shipping
4.9 Customer service
99% Buyers recommend
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5 out of 5 stars 5 This item

Betsy May 28, 2026

Haven’t made this yet, but read through the instructions and they seem to be very easy to follow

Betsy May 28, 2026

5 out of 5 stars 5 This item

Donna May 24, 2026

Haven't made this one yet but I have no doubt it'll be great!!

Donna May 24, 2026

5 out of 5 stars 5 This item

Georgette Apr 2, 2026

Was at scale. Easy to follow

Georgette Apr 2, 2026

5 out of 5 stars 5 This item

Etsy buyer Apr 2, 2026

I don't have a lot of bag making experience and I use a domestic machine. I was worried I wouldn't be able to handle all the curves and layers of fabric but it all worked out. So much easier than I thought! The instructions are very good and there's some YouTube videos out there if you need more help visualizing. I used waxed canvas and quilting cotton and my machine could handle it. My husband uses it to carry his laptop to work every day and it's the perfect size for him.

Etsy buyer Apr 2, 2026

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Listed on Jun 6, 2026