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How to hem jeans by hand?

Published in Hand Sewing Denim 6 mins read

Hand-hemming jeans, particularly while preserving the original factory hem, is a practical and rewarding skill that allows for a custom fit with a professional appearance, achievable entirely by hand.

Why Hand Hem Your Jeans?

Hand-sewing a jean hem offers several advantages:

  • Preserves Original Hem: This technique, as highlighted in videos like "HAND SEWING a Jeans Hem - Keeping the Original Hem!", allows you to retain the distinctive, often distressed, original hem of your jeans. This maintains the authentic look and feel of the denim, which machine hemming might alter.
  • Precision and Control: Hand-sewing offers meticulous control, allowing you to achieve a very precise hemline, especially beneficial for intricate adjustments or thick denim.
  • No Special Equipment: You don't need a sewing machine, making it accessible to anyone with basic sewing supplies.
  • Durable Finish: With the right stitch, a hand-sewn hem can be incredibly strong and durable, ensuring it withstands regular wear and washing.

Materials You'll Need

To effectively hem your jeans by hand, gather the following:

  • Jeans: The pair you wish to hem.
  • Fabric Scissors: Sharp scissors suitable for cutting denim.
  • Measuring Tape: For accurate length determination.
  • Pins: To hold the hem in place while sewing.
  • Sewing Needle: A sturdy needle designed for denim (e.g., a "jeans" needle or a strong general-purpose needle).
  • Strong Thread: Polyester thread is recommended for its durability and resistance to breakage. Choose a color that matches your jeans or the original hem stitching for an invisible look.
  • Fabric Chalk or Marker: For marking the new hemline.
  • Iron and Ironing Board: For pressing the hem for a crisp finish.

Step-by-Step Guide to Hand Hemming Jeans (Keeping the Original Hem)

This method focuses on folding the excess fabric inside the leg while keeping the existing hemline visible on the outside. The result is a professional finish that looks "really good all by hand," as noted in the reference.

1. Determine and Mark the New Length

  • Try on the Jeans: Put on the jeans and the shoes you typically wear with them.
  • Fold to Desired Length: Fold the excess fabric upwards to the inside of the jean leg until the original hem sits at your desired length. Ensure the fold is even around the entire leg.
  • Pin in Place: Pin the folded hem securely in a few spots to hold it while you remove the jeans.
  • Mark the Hemline: Once the jeans are off, carefully re-check the length and use your fabric chalk or marker to draw a consistent line around the entire leg, just above the original hem (on the fabric that will be folded up). This line represents where the top edge of the original hem will sit.

2. Prepare the Fold for Stitching

  • Measure and Fold: Measure the distance from the original hem to the marked line. This is the amount of fabric you will be folding inwards. Carefully fold the original hem upwards (to the inside of the jeans) so that the original hem sits exactly on the marked line you made in the previous step.
  • Press the Fold (Optional but Recommended): Using an iron, press the newly folded hemline flat. This creates a crisp crease and makes the subsequent sewing much easier.
  • Pin Securely: Place pins every 1-2 inches around the folded hem, ensuring they go through both the original hem and the fabric layer underneath that you're folding up. This keeps everything aligned.

3. Hand Stitch the Hem

The goal here is to secure the original hem to the folded fabric layer underneath. A slip stitch or blind hem stitch is ideal for an invisible finish. For extra durability, a small backstitch can be used.

  • Thread Your Needle: Use a single strand of strong thread, approximately 18-24 inches long. Knot the end.
  • Start Stitching:
    1. Begin by bringing your needle up from the inside of the folded fabric (the "wrong" side) so your knot is hidden within the fold.
    2. For a Slip Stitch/Blind Hem:
      • Take a tiny stitch (just a few threads) through the original hem fabric on the right side of the jeans, directly opposite where your thread emerged from the fold. Keep this stitch as small as possible on the outside.
      • Then, slide your needle horizontally inside the fold for about 1/4 to 1/2 inch.
      • Bring the needle out from the fold, then immediately take another tiny stitch through the original hem.
      • Repeat this process, alternating between a tiny stitch on the outer fabric and a longer stitch hidden within the fold.
    3. For a Running Stitch/Backstitch (more visible but very secure):
      • Work from the inside, sewing through the original hem and catching the fabric underneath. A small running stitch will be visible on the outside. A small backstitch will be more secure and less visible than a full running stitch.
  • Continue Around: Continue stitching all the way around the hem of the jean leg.
  • Secure the End: When you reach the beginning, make a few small, secure knots in the thread, tucking them neatly into the folded fabric.

4. Trim and Finish (Optional but Recommended)

  • Trim Excess Fabric: After stitching, you'll have a layer of excess denim folded up inside the hem. You can trim this excess fabric down to about 1/2 to 3/4 inch from your stitched line. This reduces bulk.
  • Finish Raw Edge (Optional): To prevent fraying of the trimmed edge, you can create a small serge-like stitch by hand, or simply leave it if the denim is tightly woven.
  • Press the Hem: Give the newly hemmed jeans a final press with an iron. This will set the stitches and give the hem a professional, flat appearance.

Tips for Success

  • Practice: If you're new to hand-sewing, practice on a scrap piece of denim first.
  • Needle Choice: A sharp, sturdy denim needle (size 14 or 16) will make sewing through thick fabric much easier.
  • Thread Color: Match your thread to the existing topstitching on your jeans' original hem for the most invisible look.
  • Consistency: Try to keep your stitches consistent in size and tension for a neat finish.

By following these steps, you can achieve a beautifully hemmed pair of jeans by hand, keeping the original factory hem intact, which "looks really good all by hand."