Knit Interfacing That Moves With You: How to Use Easy-Knit in Black for Dresses and Jackets

Most interfacing problems with knit garments come from a mismatch: a stiff interfacing fused to a fabric that wants to stretch and drape. The result is collars that fight the neckline and jackets that lose their soft shape. Pellon EK130 Easy-Knit Interfacing in black was designed to solve that problem. It supports your fabric while still moving with it.

What Easy-Knit Is

EK130 Easy-Knit is a fusible knit interfacing made from 100% polyester, sold here on a 20 inch by 10 yard bolt in black. Unlike a non-woven interfacing, it has a knitted structure with a clear grain. It has a lengthwise grain that provides body and stability, and crosswise stretch that allows flexible shaping. That combination makes it feel supple rather than crisp — it adds structure without taking away drape.

The black color matters. On dark fabrics, white interfacing can show through at edges, peek out at facings, or create a pale shadow under semi-transparent cloth. Black disappears behind navy, charcoal, deep reds, dark florals, and black garments, so your support layer stays invisible.

What It Is Best For

Easy-Knit is a fusible knit interfacing and supple stabilizer for dresses, jackets, and pants. It is best used with light to midweight knits, wovens, sweater knits, and machine knitted fabrics, and it is excellent with fabrics such as wool, flannel, and gabardine.

Used as a traditional interfacing, it adds shape to collars, necklines, front facings, and cuffs while maintaining drapability. That makes it ideal for soft tailoring: an unlined jacket that should hold its front edge without feeling rigid, a dress bodice that needs a clean neckline, or knit pants that need support without losing comfort.

Used as an underlining, it does a second job. Fused to the wrong side of a garment section, it prevents show-through on light colors and semi-transparent fabrics and adds comfort to scratchy fabrics, creating a smoother layer between a coarse wool or textured knit and your skin.

How to Fuse It

Start by testing on a scrap of your fashion fabric. Knits and wool blends vary, and a test tells you how your fabric responds to heat and whether the hand feels right before you commit to a cut piece.

Cut the interfacing on the same grain as your pattern piece, using the lengthwise grain for stability. Place the fusible side against the wrong side of your fabric and press following the product directions for temperature and time. Press with a lifting and placing motion rather than sliding the iron, which can shift a knit or stretch it out of shape. Work in sections, let each section cool before moving the piece, and check for an even bond with no bubbles or lifted edges. Because Easy-Knit has crosswise stretch, handle pieces gently and avoid pulling them as you position them.

Fuse flat pieces on your pressing table before construction. Interfacing a finished collar or facing is far harder to do smoothly.

Tips and Care

Match weight to weight. Easy-Knit is for light to midweight fabrics, so it will not turn a heavy coating stiff, and it can overwhelm a very delicate sheer if you fuse large areas. When in doubt, interface smaller detail areas first.

Care for the finished garment according to the fashion fabric's requirements. If you plan to wash the garment, wash a fused test scrap first to confirm the bond holds as you expect. Store leftover yardage flat or rolled, away from prolonged heat, so the fusible surface stays ready for your next dress, jacket, or pair of pants.

If you sew a lot of knits and soft woven garments in dark colors, a bolt of black Easy-Knit is a quiet workhorse: invisible support, flexible shaping, and drape that still feels like the fabric you chose.

Shop the Pellon® EK130 Easy-Knit® Interfacing 20" x 10 yards Bolt. Color: Black. at Linda's Electric Quilters.