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Guardian Anti-Theft Backpack

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This is an intermediate pattern, in that it uses advanced bag making techniques that require the sewer to have a general familiarity with bag making. It requires accurate cutting/sewing and installing a curved zipper which can be challenging for new sewers.

Specs: approximately 11” wide by 5” deep and 11” tall. Straps are cut 40” long and fully adjustable with a convenient grab handle along the top. The pattern also includes instructions for an optional, removable shoulder strap as well. It features 2 exterior side slip pockets and inside has a slip pocket and 2 pen pockets. This pattern uses binding only on the bottom base on the interior of the bag. The “anti-theft” nature of this design is that the main entry to the interior of the bag is through a zipper that lies against your back.

Materials & Supplies:
• ½ yard main fabric
• ½ yard accent fabric
• ½ yard waterproof canvas (WPC)
• 1 yard of 17” Decovil light (more if not using WPC for lining)
• 1 yard of 45” woven interfacing (*fabric dependent)
• 20” of #5 zipper tape and 1 zipper pull
• (2-4) 1” D rings (4 if doing optional shoulder strap)
• (2) 1½” strap adjusters (with rounded corners for comfort)
• (2) 1½” swivel clasps
• (2) 1” swivel clasps (*optional for shoulder strap)
• small rivets (*optional)
• 3¼ yards of 1½” webbing for straps/grab handle
• 5/32” Leather hole punch or rotary punch (*optional)
• Rotary cutter (or SHARP X-Acto knife/box cutter)
• Quilting ruler
• Wonder clips
• Removable marking pen/chalk
• (1) roll of ¼” Double-sided tape, Fabri-Tac™, or leather glue
• 1 yard of ½” double fold bias tape (*only if not using WPC)
• 8x11 piece of cork/vinyl/leather (*optional for grab handle and shoulder strap)