The illustrated tutorial on how to make a peaked cap is as follows:

1. Prepare materials

1. Fabric for the peaked cap: Choose suitable fabrics, such as cotton, nylon, and wool wait. Choose colors and textures based on personal preference and needs.

2. Sewing tools: needle, thread, scissors, measuring ruler, etc. Make sure your tools are clean and tidy so you can complete your sewing job smoothly.

3. Filling material: If you need to increase the thickness and warmth of the hat, you can choose to use filling materials, such as polyester fiber, cotton, etc.

2. Measure and cut

1. Measure the head size: Use a measuring tape to measure the head size and determine the length and width of the peaked cap. Determine hat size based on individual head circumference.

2. Cut the fabric: Use scissors to cut the fabric according to the measurement results. Make sure you cut the fabric to the desired size and leave some allowance to accommodate stitching and adjustments.

3. Sew the edges of the hat: Align the two sides of the hat and sew with a needle and thread. Make sure the stitching is tight to avoid loose or untied threads.

3. Sewing the hat body

1. Adjust the shape of the hat: During the sewing process, adjust the shape of the hat in a timely manner to ensure that the hat fits the head and maintains symmetry.

2. Sew the bottom: Align the bottom edge of the hat and sew. Also making sure to sew tightly, complete the main part of the hat.

3. Cut the duck tongue shape: Cut out the shape of the duck tongue part according to the design drawings or personal preferences. Make sure you cut it accurately, leaving enough allowance to accommodate the stitching.

4. Complete the production

1. Sew the duck tongue: Sew the duck tongue part to the main body of the hat. Make sure the stitching is tight so that the duck tongue is perfectly integrated with the hat.

2. Adjust the position of the duck tongue: During the sewing process, adjust the position of the duck tongue in a timely manner to ensure that it maintains symmetry and a suitable angle with the main body of the hat.

3. Complete the production: After the above steps, the production of the peaked cap is basically completed. Check that all seams are tight and adjust them appropriately to ensure the hat is comfortable and looks good. Finally, add necessary decorations or details according to personal preference to make the peaked cap more distinctive and individual.