Choose a bag-making stabiliser

Which stabiliser does your bag need?

The right stabiliser depends on the result you want, not the technique you already know. Use this guide to match your project to the right product.

Crisp, structured shape

For bags that need to stand up on their own — think totes with flat bases, organisers, and boxed pouches. You want a stiff or extra-firm stabiliser that holds its shape even when the bag is empty.

• Pellon Peltex Double Sided Fusible Stiff Interfacing — ultra-firm, iron-on both sides; excellent for structured base panels and sides that stay rigid.

Tips: Cut to size before fusing. For very stiff results, use in the outer panel only; sandwich with a softer layer if you want structure without the cardboard feel.

Soft structure (body without rigidity)

For bags with gentle body and a smooth drape — crossbody bags, zip pouches, and clutches that need to look polished without being board-stiff.

• VH870 Iron-On Fleece, 90cm wide — a lightweight fusible fleece that adds subtle loft and body; irons onto fabric without bulk.

Tips: Fuse to the wrong side of your outer fabric before cutting pieces. Works well layered with a woven sew-in interfacing on lining panels for extra stability.

Padded, quilted, or protected structure

For bags that need cushioning — tech sleeves, camera bags, padded totes, and anything that needs to protect its contents or have a quilted look.

• Bosal In-R-Form Double Sided Fusible Foam Stabiliser — fuses to both layers at once; creates a firm, padded wall with no stitching required. Ideal for structured bag sides, zip-top bags, and laptop sleeves.
• Soft & Stable, 72-inch wide — ByAnnie's signature open-cell foam; sew-in (no fusible), extremely firm yet lightweight. The go-to for structured ByAnnie-style bags and organisers. At 72 inches wide it cuts efficiently for large panels.

Tips: Soft & Stable does not fuse — attach it by basting or sewing within the seam allowance. Bosal In-R-Form is double-sided fusible so press firmly and allow it to cool fully before handling. Both can be quilted through for decorative effect.

Lining support (preventing sag and stretch)

A lining that sags, stretches, or shows every wrinkle undermines an otherwise well-made bag. A light sew-in or iron-on interfacing on the lining fabric keeps it crisp throughout the life of the bag.

• Vlieseline H180 Light EasyFuse Iron-On Interlining — whisper-weight, ideal for cotton lining fabrics where you want stability without extra bulk.
• Vlieseline F220 Iron-On Interlining — a medium-weight non-woven; slightly firmer than H180; suits heavier lining fabrics or pockets that see heavy use.

Tips: Fuse to the wrong side of lining pieces before cutting for the most accurate results. Avoid over-ironing — press for 10–15 seconds with a damp cloth.

Layering stabilisers

Many bag makers combine two stabilisers for a professional result:

• Outer fabric + VH870 fleece → smooth, lofted exterior with no rigidity.
• Outer fabric + Soft & Stable or Bosal In-R-Form → firm, padded walls that hold shape.
• Base panel + Peltex → a rigid base even when the sides are soft.
• Lining + H180 or F220 → crisp lining that won't sag into the bag cavity.

The key rule: add weight from the outside in. Use your firmest layer closest to the outer fabric and the lightest interfacing on the lining, so the bag feels intentional rather than stiff throughout.

Quick-reference table