Different Stabilizers and Their Uses in Bag Making
, by Heather Cousins,
2 min reading time
The right stabilizer can make or break a bag. Here's a guide to the most common types — from fusible woven interfacing to foam stabilizer — and when to use each one.
If you've ever made a bag that turned out a little floppy, or wondered why your straps don't hold their shape, the answer is almost always stabilizer. Choosing the right stabilizer is one of the most important — and most overlooked — skills in bag making. Here's a guide to the most common types and when to use them.
What is a Stabilizer?
Stabilizers (also called interfacing or batting, depending on the type) are materials added to fabric to give it structure, body, and durability. In bag making, they're what separates a limp tote from a beautifully structured handbag. Different stabilizers do different jobs, so it's worth understanding your options.
1. Fusible Woven Interfacing
Woven interfacing is stable in all directions and adds structure without stiffness. It's great for bag exteriors where you want a clean, tailored look without the bag feeling rigid. It fuses to your fabric with an iron, making it easy to apply. Use it for structured totes, clutches, and the body of most everyday bags.
2. Fusible Fleece
Fusible fleece adds soft body and a slight puffiness to your fabric. It's perfect for bags where you want a softer, more cushioned feel — like a quilted bag, a camera bag, or a padded pouch. It also gives bags a lovely hand feel and helps them hold their shape without being stiff.
3. Foam Stabilizer (like Bosal or Soft and Stable)
Foam stabilizer is the secret weapon of serious bag makers. It's thick, sturdy, and self-supporting, meaning your bag will stand up on its own without any help. It's ideal for structured handbags, tote bags that need to hold their shape when empty, and any bag where you want that polished, professional look. It doesn't fuse — it's sewn in — but the results are worth it.
4. Sew-In Interfacing
Sew-in interfacing is stitched rather than fused to your fabric. It's a good choice for delicate fabrics that can't handle the heat of an iron, or when you want a bit more drape than fusible interfacing provides. It's also useful for bag linings where you want some structure but not stiffness. Just use a basting stitch to attach to your fabrics to keep it stable while you're sewing with it.
5. Batting
Cotton or polyester batting is typically used in quilted bags. It adds warmth, loft, and a beautiful texture when quilted. If you're making a quilted tote or a patchwork bag, batting is what gives it that cozy, dimensional look.
A Note on Combining Stabilizers
Many bag patterns call for more than one type of stabilizer — for example, foam stabilizer on the exterior and fusible fleece on the lining. Don't be afraid to layer them to get exactly the structure you're looking for.
