Most embroidery digitizing questions assume a polo shirt or a twill cap, but a lot of the designs we get asked about go somewhere less standard โ a leather jacket, a raw denim panel, a fleece pullover, a plush terry towel. Each of these fabrics behaves completely differently under a needle, and the digitizing file has to change to match. Here's what's actually different about each one.
Leather
Leather doesn't stretch, but it also doesn't forgive mistakes โ every needle hole is permanent, so there's no "unpicking" a stitch without leaving a visible mark. Digitizing for leather typically means lower stitch density than fabric, since leather doesn't need heavy underlay for stability, and too many needle penetrations in a small area can actually weaken and tear the material.
Larger stitch lengths and simplified detail work best here โ fine text and tightly packed satin columns are the first things we'll flag as risky on a leather order, since leather punctures easily but doesn't "give" the way woven fabric does around a needle.
Denim
Denim is thick and tightly woven, which actually makes it a fairly stable, forgiving fabric to embroider on โ closer to twill than most people expect. The main adjustment is a slightly heavier needle and thread tension setting to punch cleanly through the dense weave without skipped stitches.
Raw or heavyweight selvedge denim can be stiffer still, sometimes requiring a topping (a light stabilizer placed on top of the fabric, under the stitching) to keep fine detail from sinking into the weave. Standard mid-weight denim, like what you'd find on a jacket or apron, usually digitizes without much special treatment beyond a firm cutaway backing.
Fleece
Fleece is soft, stretchy, and has a napped surface that stitches can sink into if density isn't managed carefully. A topping film placed over the fleece before stitching keeps the surface stitches from disappearing into the pile, giving crisper, more defined edges on the finished design.
Underlay also needs to work harder on fleece than on a stable woven fabric โ the stretch has to be locked down first, or the design can shift and distort once the hoop tension is released after stitching.
Terry Cloth (Towels)
Terry cloth's looped pile is even more absorbent of stitches than fleece, which is why towel embroidery almost always uses a topping and heavier-than-usual underlay to keep the design from sinking in and losing definition. Without it, even a bold, simple logo can look soft and blurred once stitched.
Cutaway backing is standard for terry cloth too, since the fabric's loose loop structure needs permanent support behind the stitching to keep the design stable through repeated washing โ towels get washed far more often and at higher heat than most embroidered apparel.
| Fabric | Key Adjustment | Common Backing |
|---|---|---|
| Leather | Lower density, wider stitch spacing | Often none, or light tear-away |
| Denim | Firmer needle/tension settings | Cutaway |
| Fleece | Topping to prevent sink-in | Cutaway |
| Terry Cloth | Topping + heavier underlay | Cutaway |
If you're not sure what fabric a garment is made from, send us a photo along with the brand or product name โ we can usually identify it and digitize accordingly.
What This Means for Your Design
Fine detail, tiny text, and dense fill areas are riskier on all four of these fabrics than they are on a standard cotton polo. If your logo has intricate elements and you're planning to stitch it onto leather or terry cloth specifically, we'll usually suggest a simplified version built for that surface rather than reusing your standard file.
Final Thoughts
Unusual fabrics aren't a problem โ they just need the right adjustments built into the digitizing file from the start. Tell us exactly what you're stitching onto, and we'll handle the density, underlay, and backing decisions that make it come out clean. See our full embroidery digitizing services for more.