Slub, rib and modal describe different aspects of a fabric. Slub commonly describes a yarn or surface effect, rib describes a knitted structure, and modal describes a fibre. A useful comparison therefore specifies both composition and construction before comparing appearance or price.
Define the fabric specification
Start with the intended garment, composition, structure, finished weight, width and finish. Record whether the weight is measured before or after finishing. Add the required hand feel, stretch, recovery, opacity and care instructions rather than relying on a reference photograph alone.
| Option | What to clarify | Useful development checks |
|---|---|---|
| Slub-effect knit | Yarn effect, composition, base structure and consistency | Surface appearance, shade and finished weight |
| Rib knit | Rib structure, elastane content and intended fit | Stretch, recovery and garment measurements |
| Modal blend | Blend percentages, knit structure and finish | Drape, shrinkage, pilling and care performance |
A soft development swatch does not establish the performance of the final bulk fabric. Compare approved samples under the agreed test and care conditions, and keep the reference specification with the order.
Connect fabric choice to garment construction
Fit, seam construction and finishing need to suit the fabric. A close-fitting rib top and a relaxed jersey top can need different measurement tolerances, stitching choices and fit review. Assess the finished garment as well as the fabric swatch.
Use a small development checklist: measure before and after the agreed care process, review twisting or distortion, assess stretch recovery where relevant and compare colour to the approved standard. Define acceptance criteria with the buyer before testing rather than choosing them after the results arrive.
Compare quotations on the same basis
Tell each supplier the same composition, weight, finish, colours, quantities and testing requirements. Ask which development assumptions remain open. A lower quotation may refer to a different fabric width, blend, finish or order size, so reconcile those differences before selecting a programme.
When a specification changes, update the tech pack and costing together. Keep physical or digital references clearly labelled by version so an earlier swatch is not mistaken for the approved bulk standard.
Plan your next sample
Explore our women's knitwear fabrics and specifications, then discuss swatches, fit references and approval stages through Développement produit. Include intended use, destination, target quantity and care expectations in your quote request. Availability, minimums and performance should be confirmed for the chosen specification rather than inferred from the category name.