Klum House Slabtown Backpack

Klum House


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Buy the Slabtown Backpack sewing pattern from Klum House. The Slabtown is a heavy-duty rolltop backpack, built for adventurous makers. It features a spacious main compartment with a quick-access zipper, front zipper pocket, adjustable leather backpack straps, and side pockets for water bottles.

Note: All Klum House patterns are designed for success on a home sewing machine. You do not need a fancy sewing machine or industrial equipment to make these “domestic machine friendly” patterns (though the designer does recommend a more robust/heavy-duty home sewing machine for the Slabtown).

This sewing pattern is available to buy in the following formats:

– PDF (available to download immediately after purchase). What is a PDF?

– PDF pattern + Printed A0 copy shop (We print out the A0 pattern sheets, but you’ll need to download the digital instructions, as we don’t print these. The PDF files will be emailed immediately after purchase, and the A0 pattern sheets will be dispatched next working day). What is Copy Shop?

Suggested fabrics: 

For the exterior, choose a fabric that will give the bag plenty of structure, such as a 9-12 oz. canvas, waxed canvas, or denim with no stretch. The designer’s favourite exterior fabric is waxed canvas for its structure, durability, and water resistance.

For the lining, use a 10-12 oz. cotton, canvas, or denim with no stretch. The designer’s favourite lining fabric is 10 oz. natural canvas because it provides added structure and its light colour makes it easy to find things in the bag.

All the leather pieces should be 8-10 oz. in weight, except for the leather zipper pulls and washers, which should be 5-7 oz.

Fabric requirements: 

Main: 60″ (152 cm) wide fabric: 3/4 yd (0.7 m).

Accent: 60″ (152 cm) wide fabric: 1/2 yd (0.5 m).

Lining: 60″ (152 cm) wide fabric: 3/4 yd (0.7 m).

Leather: 40″ x 1 1/8″ leather strips + 100″ x 3/4″ leather strips + 6″ x 3″ leather scrap + 5″ x 2″ leather scrap (5-7 oz.).

Sizing: Finished dimensions: 17 1/2″ H (rolled down) / 24 1/2″ H (extended) x 11″ W x 5 1/2″ D (44.5 cm / 62 cm x 28 cm x 14 cm).

Notions: See image gallery.

PDF pattern includes: Instructions; US letter print-at-home pattern (28 pages); A4 print-at-home pattern (28 pages); A0 copy shop pattern (1 long sheet) // Layers: No // Projector file: No.

If you’re looking for more maker inspiration, check out the latest sewing pattern reviews from the sewing community. We also have a sewing blog to keep you up to date with all the news from the world of sewing.

Additional information


Denim / Corduroy, Heavyweight Cotton

Make time

One to two days

Sewing level



One Size

Pattern format

PDF, PDF pattern + Printed copy shop (+£7.00)

PDF Printing

28 Pages

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