Costermonger Backpack Sewing Pattern – Merchant And Mills


The Costermonger is the essential market tote designed as a backpack. Fill it up with wholesome goodies, leaving your hands free to tickle your dog. This is a simple satisfying sew that uses little fabric so ideal for using up some of your stash or making as a present.

6 in stock

SKU: 02400005 Categories: ,


Fabric Requirements: (this is an unlined bag)

80 – 98cm wide – 0.95M

98 – 150cm wide 0.70M

Leather Strap Version: 

Rivets or chicago screws 8 x 9mm

Metal sliders 4 x 1″

Leather Strap 2 x 1″ x 89cm long. We find that split cowhide leather straps move the smoothest through the sliders.

Matching thread

When inserting the rivets we recommend using a very solid surface like a cement floor so there is no movement. You will just need a hammer to set the rivets, but you will need something to make a hole in your leather, we recommend a revolving hole punch.

Webbing Version:

Metal sliders 2 x 1″.

1.6m of webbing 3cm wide.

Matching thread

Suggested Fabrics:

Oilskin, Dry Oilskin, Mid-Heavy weight Cotton Canvas or Drill, Mid weight Denim (8-14oz)

Finished measurements length 45cm, width 40cm.

Additional information

Fabric Type


Garment Type


Pattern Designer

Merchant and Mills

Skill Level


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