01   Fabrics

Exterior

Approximately 1/2 yd. (50 cm). If making your own 1" strap instead of using webbing, add a 50" × 4" (127 × 10 cm) piece.

Lining & Slip Pocket

Approximately 1/2 yd. (50 cm) lining fabric, plus an approximately 7" × 8" (18–21 cm) piece of mesh for the slip pocket and a 7" (18 cm) piece of fold-over elastic.

02   Interfacing & Stabilizer

• Lightweight woven fusible interfacing: Approximately 1/2–1 yd. (50–100 cm). Generally not required for vinyl, cork or waterproof canvas; it can help stabilize faux leather, faux suede or vinyl with subtle one-way stretch. Shop woven interfacing.
• Lightweight stabilizer: Approximately 1/4 yd. (25 cm), such as Decovil Light.

03   Hardware

• 1 Turn Lock or 1 Magnetic Snap
• 2 × 3/4" (19 mm) D-Rings
• 2–4 Rivets or Chicago screws (optional; not necessary). Choose 6–7 mm posts for thinner fabrics or 8–9 mm posts for thicker fabrics.
• 1 Bag Tag (optional)

04   Strap & Binding

• Strap: 55–60" (140–153 cm) of 1" or 1 1/2" wide webbing (1 1/2" recommended), or make your own.
• For a 1 1/2" strap: 1 Swivel Snap Hook, 1 Strap Slider and 1 strap end, all 1 1/2" (38 mm) wide.
• For a 1" strap: 1 Swivel Snap Hook, 1 Strap Slider and 1 Strap End (optional), all 1" (25 mm) wide.
• Binding: Approximately 2 yd. (200 cm) of 1/2" (13 mm) wide double-fold bias binding, or 1" (2.5 cm) Fold-Over Elastic, or 1" (25 mm) waterproof canvas.

05   Zipper & Pulls

14 5/8" (37 cm) of #5 zipper tape for the main closure + 1–2 matching pulls.

06   Sewing Tools & Supplies

• Double-Sided Tape
• Rotary Cutter or Scissors; Pinking Shears
• Punch Cutter (optional; size depends on the opening being cut)
• Hole Punch or Japanese Hole Punch
• Removable Marking Pen
• Screwdriver
• Rivet Setter Tool or Rivet Press with corresponding Dies
• Loctite or E6000 Glue
• Grid Ruler / Cutting Mat
• Lighter for heat sealing webbing