What Is the Difference Between Lightweight and Featherweight Interfacing?

Lightweight and featherweight interfacing are two types of materials commonly used in sewing and garment construction. While both types of interfacing serve the purpose of providing structure and stability to the fabric, there are some key differences between them. Lightweight interfacing is a relatively thin and flexible material that’s often used for delicate fabrics or garments where a subtle level of support is desired. It’s commonly used in collars, cuffs, and waistbands to add shape and prevent stretching. Lightweight interfacing is typically easier to work with and can be machine washed without losing it’s integrity. It’s often used for very lightweight or sheer fabrics where minimal structure is needed. Featherweight interfacing is great for fabrics like silk or chiffon, where too much support can weigh down the garment. It provides a subtle level of stability while maintaining the drape and flow of the fabric. Both lightweight and featherweight interfacing can be fused or sewn into the fabric depending on the desired effect. Fusible interfacing is applied to the wrong side of the fabric using heat and pressure, creating a bond between the two layers. Sew-in interfacing is stitched directly into the garment, providing a more permanent and durable solution.

Should Interfacing Be the Same Weight or a Little Lighter Weight Than Your Fabric?

When it comes to choosing the right interfacing for your sewing projects, understanding the difference between lightweight and featherweight options can make a big difference in the final outcome. Interfacing is a material that’s used to give structure and stability to fabrics, and it’s commonly used in collars, cuffs, waistbands, and other areas that need reinforcement.

When deciding which weight of interfacing to use, it’s generally recommended to choose a weight that’s either the same or slightly lighter than your fabric. This ensures that the interfacing won’t overpower or weigh down the fabric, allowing it to drape and move naturally. Using a heavier interfacing can stiffen the fabric too much, causing it to lose it’s softness and drape.

Madeira Aerolock Premium Serger thread is a top-quality thread that’s perfect for use with sergers and coverlock machines. It’s made of 100% core-spun polyester, making it strong and durable. This thread is designed to withstand frequent washing and strain, making it perfect for garments and other items that will be regularly used and laundered.

If you’re using lightweight interfacing, be sure to use a corresponding lightweight thread to ensure that the stitches aren’t too heavy for the fabric. Similarly, if you’re using featherweight interfacing, opt for a lighter thread as well.

Overall, choosing the right interfacing and thread for your sewing projects can greatly impact the final outcome.

How to Match Thread Color to Your Fabric and Interfacing

  • Consider the main color of your fabric and choose a thread that closely matches it.
  • If your fabric has multiple colors or patterns, select a thread that matches the dominant color or the color of the background.
  • You can also use a thread that complements or contrasts with your fabric, depending on the desired effect.
  • Take into account the type of fabric and it’s thickness. Match the thread weight accordingly for better sewing results.
  • When working with sheer or lightweight fabrics, use a fine thread that blends with the fabric rather than stands out.
  • If using a decorative stitch or topstitching, choose a thread color that enhances the design or creates a subtle contrast.
  • Test the thread color on a scrap piece of fabric or interfacing before stitching to ensure it matches or complements the fabric properly.
  • When using interfacing, match the thread color to the fabric side of the garment rather than the interfacing side.
  • Remember that the ideal thread color may vary depending on personal preference and the desired outcome of your project.
  • Ultimately, trust your instincts and experiment with different thread colors to achieve the desired look for your fabric and interfacing combination.


The choice between the two types depends on the specific requirements of the project and the desired outcome. Additionally, it’s important to consider factors such as fabric type, desired drape, and the level of support needed.

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