What Is Four-Way Stretch Fabric?
Four-Way Stretch Fabric, or 四面弹, is a fabric that provides usable extension and recovery in both the lengthwise and crosswise directions. The term describes directional performance rather than a single fiber composition. Knitted versions commonly combine nylon, polyester, recycled polyester or another base fiber with elastane, while stretch wovens may use elastane yarns, mechanical stretch yarns or a combination of yarn and weave effects. Buyers should confirm measured stretch and recovery in each direction because four-way stretch does not mean equal extension, equal power or complete return to the original dimensions.
Common Specifications Buyers Compare
SpecificationCommon OptionsBuyer Note
Construction and fabric formation.Weft-knit single jersey, interlock, rib, ponte, warp-knit tricot, circular-knit jacquard, plain-weave stretch, twill stretch or dobby stretch.This determines which stretch and recovery test is appropriate and whether the fabric can meet the garment’s support and drape requirements.
Fiber composition.Polyamide or nylon/elastane, polyester/elastane, recycled polyester/elastane, cotton/elastane and cellulosic blends with elastane.Confirm the full fiber breakdown and the basis for the declared percentages because elastane level influences stretch, power, recovery, cost and care sensitivity.
Elastane or spandex content.Low, medium or high elastane content, supplier-dependent and selected against the target stretch and support level.Nominal elastane content does not establish performance; require laboratory or mill test results for the finished fabric.
Directional stretch or elongation.Report percentage extension separately in lengthwise and crosswise directions under agreed load, extension and conditioning.Measure both principal directions because activewear patterns may load the fabric differently at the waist, knees, seat, shoulders and armholes.
Stretch force or power.Low-power comfort stretch, medium-power body fit or higher-power support stretch, with numerical force limits agreed by buyer and mill.Power affects comfort, compression, ease allowance and sewing behavior, so elongation alone is insufficient for close-fitting garments.
Stretch recovery and fabric growth.Recovery, growth or residual deformation reported after specified extension, hold time, release and recovery time.Recovery controls bagging and fit retention after movement; define the test cycle and relaxation period so supplier results are comparable.
Finished GSM and thickness.Lightweight, mediumweight or heavyweight constructions, with the final range set by fabric type and product use.GSM and thickness affect coverage, warmth, support, drying time, shipping weight and cutting yield.
Finished and usable width.Finished open width, tubular width or cuttable width, stated separately where relevant.Usable width determines marker efficiency and may change after relaxation, brushing, compacting or heat setting.
Main Applications
Leggings and yoga pants.Sports bras, fitted tops and base layers.Swimwear and performance underwear.Cycling, golf, equestrian and outdoor apparel.Stretch-woven trousers, jackets and uniforms.Compression and close-fitting garments where controlled recovery is required.
How Buyers Should Source It
- Define four-way stretch by measured lengthwise and crosswise performance, not by the supplier’s product name alone.
- Ask the mill to identify the stretch mechanism, including elastane placement, plated yarn arrangement, knit structure, weave structure and any mechanical-stretch yarn.
- For knitted activewear, compare single jersey, interlock, tricot and double-knit constructions against the garment’s required opacity, support, drape and drying behavior.
- Treat elastane content as a design variable rather than a universal quality grade; the suitable level depends on target extension, power, fabric weight and end use.
- Request directional results because a fabric can have strong crosswise stretch but insufficient lengthwise recovery for leggings or fitted trousers.
- Check whether reported composition is based on nominal recipe, finished-fabric analysis or commercial declaration, especially when elastane content affects labeling and price.
- Evaluate the fabric after dyeing and finishing because heat setting, compaction, tentering and chemical treatment can change width, handfeel and recovery.
- Ask for the mill’s relaxation procedure before cutting, since residual knitting or finishing tension can distort marker yield and garment dimensions.
- Approve color standards and performance on the same base construction because dark shades, prints, coatings and brushed finishes can alter appearance and behavior.
RFQ Checklist
- State whether the fabric is knitted or woven, and identify the construction such as single jersey, interlock, tricot, ponte or stretch twill.
- Request fiber composition by percentage, including the exact elastane or spandex content and whether any recycled-content claim applies.
- Define finished width, usable width, GSM, thickness and roll weight because these affect marker planning, coverage, garment support and yield.
- Specify minimum stretch or elongation separately in the lengthwise and crosswise directions under an agreed test method.
- Specify recovery or growth limits after defined extension, hold time, relaxation time and repeated cycles because initial stretch does not predict shape retention.
- Require power or force data when fit, compression or support is critical, since two fabrics with similar elongation can feel very different on the body.
- State laundering conditions, drying method and number of cycles for dimensional stability, stretch and recovery testing.
- Request opacity or coverage testing in the intended color and wet state when the fabric will be used for leggings, swimwear or close-fitting garments.
- Confirm pilling, abrasion, snagging, colorfastness, perspiration resistance and chlorine resistance according to the product risk profile.
- Ask for pilot-lot and bulk-lot test reports because knitting tension, elastane feeding, dyeing and finishing can shift performance between lots.
Common Mistakes to Avoid
- Treating any fabric with stretch as four-way stretch without measuring both principal directions.
- Specifying elastane percentage without defining stretch, power, recovery and laundering requirements.
- Approving fabric from a relaxed swatch when the garment requires controlled fit under repeated extension.
- Using a woven-fabric stretch method for a knitted fabric or comparing results from different test methods.
- Assuming higher elastane content always gives better performance, since construction, yarn quality, finishing and fabric weight also affect recovery.
- Approving the face appearance without checking opacity, spirality, width stability, pilling and seam behavior after laundering.
- Using the terms spandex, elastane and LYCRA as if they identify the same commercial yarn specification.