Create custom-sized stuff sacks effortlessly without complex calculations or 3D modeling. Simply input your desired finished 3D stuff sack dimensions, and our generator will calculate precise 2D pattern panels. Say goodbye to fabric waste and guesswork, especially if it's your first MYOG (Make Your Own Gear) project!

Our provided panel dimensions already include the seam allowances. Additionally, note that the drawstring casing, also known as the cord channel, is consistently 1.5 inches (4cm) tall.

• Body Panel Length:
• Body Panel Height:


• Cord Channel Length:
• Cord Channel Height:

For guidance on suitable technical fabrics, recommendations, and trusted vendors, refer to our Fabrics Guide. Please note that this is a beginner-friendly project, and it is intended for non-fray technical fabrics. Therefore, seam binding or seam finishing techniques are not included in the instructions.

Materials	Links
Lightweight Coated Nylon such as 1.9oz PU Coated Nylon or 2.2oz Hex 70
Drawstring Cord
Cord Lock
Grosgrain Ribbon 1/2"-3/4" (13-20mm) wide, 4" (10cm) long
Polyester Thread such as Gutermann Sew-All or Gutermann MARA 70
Machine Needles such as Schmetz Universal size 90/14

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Based on units selected seam allowances are already included in the pattern. Not seeing measurements? Generate pattern dimensions above.

1. Cut one Body Panel from your fabric.
   Length: and Height:
2. Cut one Cord Channel panel from your fabric.
   Length: and Height:
3. Cut one drawstring cord. Length:
4. On the wrong side, mark the mid point of Body Panel along top and bottom edges.
   📌 Lightly fold the fabric panel in half to quickly find the midpoint.

To enhance clarity, we use light grey to represent the wrong side of the fabric and white to depict the right side in the illustrations. The red dashed line illustrates the seam being sewn.

1. Fold one end of Cord Channel to the wrong side and crease flat. Sew the single fold hem.
2. Repeat on the opposite end of Cord Channel.
3. Fold the Cord Channel in half along the long edge, with the wrong sides touching. Stitch close to the raw edge to create a channel, making sure to sew within the seam allowance.
4. Fold the short length of ribbon in half and place at the center of Cord Channel. Ensure the raw edges are touching. Sew a webbing pull loop at the midpoint of Cord Channel, stitching within the seam allowance.

1. With right sides together, center align Cord Channel to top edge of Body Panel.
   📌 The Cord Channel should be inset 1/2" from the sides of Body Panel. Ensure the webbing loop is sandwiched between Body and Cord Channel.
2. Sew Cord Channel to Body Panel using a 1/2" seam allowance.
3. Flip the Cord Channel up and finger press the seam to the Body Panel.
4. Along top edge of Body Panel just below Cord Channel, topstitch through Body Panel and seam allowances.

1. Fold the Body Panel in half so right sides are together.
2. Sew the side seam with a 1/2" seam allowance. Stitch close to but not overlapping the Cord Channel openings.
3. Open and align the side seam in the middle of Body Panel. Finger press the seam to one side.
4. Stitch the bottom closed with a 1/2" seam allowance.

1. Blow a little air into the stuff sack and press the sides inwards to form crisp boxed corners along the bottom seam.
2. With the bottom seam finger pressed flat and straight, draw two marks from the left side:
   • 1/2 Bottom Width = input measurements
   • Bottom Length = input measurements
   • 1/2 Bottom Width input measurements should remain.
3. At first mark, draw a [Bottom Width] line perpendicular and square to bottom seam.
4. Repeat again at the next mark. The bottom should look like the image.
5. Stitch along the vertical lines forming the rectangular bottom.
6. Before trimming off the corners, turn your bag right side out to check for overall symmetry.
7. Trim the corners off about 1/2" from the seam.

1. Turn your cinch sack right side out one final time!
2. To reinforce the Cord Channel opening where it meets Body Panel, sew a small bartack about 1/2" long.
3. Attach a safety pin to one end of the drawstring cord and thread it through the opening in the cord channel.
4. Once the cord is all the way through, add the cord lock and tie the free ends of the drawstring together to secure.
5. Your Cinch Sack is now ready to use! Simply pull the drawstring to close the sack and carry your belongings with ease.

👏 Congrats on making your own custom Cinch Sack!

If you want to try another style, check out the Roll Top Stuff Sack next!