Merchant & Mills : Costermonger Bag Pattern

$23.00 CAD

Please Note : Merchant & Mills : Costermonger Bag Pattern is currently available for pre-order purchase. The anticipated arrival date at the Sprucedale shop is Friday October 3, 2025. A local pick up date in Parkdale will be updated upon arrival.

Purchases made including pre-order items will be held until they can be entirely fulfilled. To avoid this timeline please order this item separately.


The Costermonger is the essential market tote designed as a backpack, fill it up with wholesome goods.

Skill Level: Beginner

Finished bag measurements: length 45cm, width 40cm.

Suggested Fabrics: Oilskin, Dry Oilskin, mid-heavy weight cotton canvas or drill, mid-weight denims. 

Fabric Requirements (this is an unlined bag):

  • 80 – 98cm wide fabric:  0.95m
  • 98 – 150cm wide fabric:  0.70m

Leather Strap Version:

  • Rivets or chicago screws 8 x 9mm
  • 4 x 1" Metal sliders
  • 2 x Leather Strap 1″ x 89cm long
  • Matching thread

When inserting the rivets use 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 like a revolving hole punch.

Webbing Version:

  • 1.6m of webbing 3cm wide.
  • 2 x Metal sliders 1.25" wide, or to fit your webbing.  Please note: The size of the sliders depends on the width of your webbing. If using a different width of webbing please ensure you purchase the corresponding slider size.
  • Matching thread