Sumo #4 Dyed is the color-finished version of our #4 Duck Greige — the same 24 oz, 100% cotton construction that's been trusted for decades, now reactive dyed for buyers who need color without giving up strength.
Finished width holds at 60 inches. Same fabric top to bottom — we just add the color.
Where it goes: tote bags, boat bags, beach bags, duffles, aprons, tool rolls — anything that needs to carry weight, survive salt air, and look good doing it.
Believe it or not, this same #4 construction is the fabric of choice for Mawashi — the belts Sumo wrestlers compete in. When a fabric has to hold its shape under that kind of load, it earns the name.
Sumo is reactive dyed — a process that bonds color into the cotton fiber itself rather than coating the surface. The result is deep, even color that holds up to salt, sand, and heavy daily use. Direct sun over time will fade it, same as any reactive-dyed cotton; keep it shaded when it's not working and the color holds.
Every roll comes off a computer-matched dye run, so the black you order is the black you get — batch to batch, order to order.
Sold in 25-yard rolls, 60 inches wide.
Sumo is currently stocked in Black. Inventory shifts daily — if you need a different color for this weight, ask about Bulk Dyeing for volume orders or Small Batch Dyeing for low-MOQ custom runs.
| Fiber Content | 100% Cotton |
|---|---|
| Style / Construction | Plain Weave |
| Yarn Count (Warp / Weft) | 7s/5 x 7s/5 |
| Construction (Warp / Weft, per inch) | 29 x 18 |
| Fabric Weight | 24 oz/sq.yd nominal (778.6 g/m² tested) |
| Tensile Strength (Warp / Weft) | 393 lbf / 265 lbf |
| Tear Strength (Warp / Weft) | 22.60 lbf / 13.78 lbf |
| Dimensional Stability (Warp / Weft) | -2.31% / -0.57% |
| Color Fastness to Washing (Shade Change) | 4 |
| Color Fastness to Rubbing (Dry / Wet) | 4-5 / 3 |
Values shown are from our Black colorway lab report (National Textile Research Centre Report No. 16-028641, dated 27-Aug-2026) and are representative of this construction across the line. Minor variation is normal between dye lots and colors.
Note: Colors can vary from one dye lot to another. As with any dyed cotton, dark and bright shades should be washed separately, away from whites and light colors. Cotton duck shrinks, mostly lengthwise; pre-wash before cutting, if shrinkage control is important in the end product.
This fabric is a pure finish — it carries no water, mildew or flame repellency. It is made for light-to-medium industrial and indoor use and is not intended for garments. We make no guarantee of lightfastness, color transfer or printability.
The buyer is solely responsible for deciding whether this fabric suits the intended end use and for meeting any flammability, safety or labeling requirements that apply to the finished product. Print methods and ink chemistry should be tested on a sample before production. Please inspect the fabric on receipt — claims cannot be accepted once fabric has been cut or processed.
Soft enough to handle. Tough enough to wrestle the day.
Tell us what you're making — we'll suggest a fabric that fits.