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Costermonger Bag by Merchant & Mills - Printed Pattern


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.

Finished Measurements

Length 17 3/4" (45 cm)

Width 15 3/4" (40 cm)

Recommended Fabric

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


Yardage: (this is an unlined bag)

Using 31 - 39 inch width fabric (80 – 98 cm)

  • 1 1/8 yard (0.95 m)

Using 38 - 59 inch width fabric (98 – 150 cm)

  • 7/8 yard (0.70 m)

Leather Strap Version: 

8 x Rivets or chicago screws 3/8" (9mm)

4 x 1" Metal sliders 

2 x Leather Straps 1″ x 35" long (2.54 cm x 89 cm)

Matching thread

Find the Leather Strap Hardware Kit here

Webbing Version:

2 x 1" Metal sliders

1.75 yards (1.6 m) of webbing 1 3/16" (3 cm) wide

Matching thread


Skill level: Beginner

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