Stretch Knit Fabric · Development & Bulk Supply
Stretch Fabric: Spandex-Free and Elastane Knits, Matched to the Garment
Mibein knits stretch fabric in two systems. One gets its stretch from inherent-stretch polyester with no spandex at all. The other uses elastane blends for higher stretch and compression. We help you choose between them before you choose a color.
- Spandex-free FLEXERA™ high stretch
- Poly/elastane knits up to 40% spandex
- Stretch & recovery rack in our lab
- 4-point inspection on every dye lot
Two systems
Why We Run Two Stretch Systems
"Stretch fabric" covers everything from a tee that gives a little at the shoulder to a legging that holds its compression through a 90-minute class. One fiber cannot do both jobs well.
Spandex-free stretch (our FLEXERA™ series and other inherent-stretch polyester knits) suits light, breathable tops and structured double-knits. These pieces need comfort stretch, a dry hand and a single-fiber composition. They do not need squeeze. Many of these qualities are also light: XWP1018-1 is 135 g/m².
Elastane blends are the right choice when the garment depends on high elongation and grip, as yoga pants, shorts and close-fitting loungewear do. Our blends range from 8% spandex in a brushed dobby to 40% in a super-soft double-knit.
Most buyers come to us with the garment already in mind. This page works from the garment back to the fiber.
Brief stage
Spandex-Free vs Elastane Stretch: A Decision Table
Use this table at the brief stage. If most of your answers fall in one column, start sampling from that group of fabrics below.
Stretch level
Comfort to high stretch, coming from the fiber and the knit structure.
The highest stretch and power. It rises with elastane content: 8% (XWT2601) to 40% in our range
Recovery over time
Fiber reference: 95%+ elongation recovery after 500 cycles
Fiber reference: "significant decline" after 500 cycles. Good initial recovery, but the elastane ages
Chlorine & heat
Fiber reference: ≥90% strength retained (50 ppm / 50 h); long-term heat resistance 130–150 °C
Fiber reference: <50% strength retained; long-term heat resistance <100 °C
Dyeing
95–105 °C at normal pressure (fiber reference)
115–130 °C (fiber reference). Recipe and heat-setting need care so the elastane keeps its power
Recyclability
All-polyester system, which is simpler to design for recycling*
Blends are harder to separate and recycle*
Handfeel
Lighter and drier. It can be matte, textured or cotton-like (e.g. C25330 waffle)
Soft, smooth and body-hugging, with a "second skin" feel (e.g. XWP2011, Y35721)
Typical garments
Performance tees, training tops, polos, structured commute and travel pieces
Yoga pants and leggings, sports shorts, loungewear, fitted women's styles
The "fiber reference" rows compare fibers, not finished fabrics. They come from the FLEXERA™ material comparison quoted in full below. *Actual recyclability depends on the finished garment's composition and the recycling facilities available locally.
Spec sheet data
The FLEXERA™ Reference Table, as Published on Our Spec Sheet
Elongation recovery after 500 cycles
95%+Significant declineRecyclability
100% recyclable*Difficult to recycle*Stretch direction
2-Way, 4-Way and Mechanical Stretch in Plain Terms
2-way stretch
Stretches in one main direction, usually across the width. This is common in wovens with stretch weft yarn and in some warp-knits. It is enough for shirts and trousers where the fabric only needs to move around the body.
4-way stretch
Stretches and recovers both lengthwise and crosswise. Knits already give in every direction, so the useful question is how well they come back in each direction, not just whether they stretch. For squats, lunges and overhead movement, ask for recovery figures in both directions.
Mechanical stretch
Stretch that comes from the knit loops, a textured or crimped yarn, or the construction itself, with no elastic fiber. Spandex-free double-knits such as S35808 combine this with inherent-stretch polyester.
The range
Stretch Knit Fabrics, Grouped by System
Below are six starting points, three from each system. Specifications come from our hang tags and spec sheets.
Spandex-free stretch
FLEXERA™ Spandex-Free High-Stretch Fabric — XWP1018-1
100% Polyester · 135 g/m² · 140 cm
This is the clearest example of the spandex-free idea. All the stretch comes from inherent-stretch polyester fiber, so the fabric stays mono-material and avoids the chlorine and heat sensitivity of elastane. The light weight and fine surface texture keep it in T-shirt territory rather than compression.
Best for: Performance T-shirts, training tops, everyday casual tops
Spandex-Free Double-Face Roman Knit — S35808
100% Polyester · 180 g/m² · 152 cm
A double-face Roman (ponte-type) knit that uses high-elastic fibers instead of spandex to give two-way stretch. The double-face build gives it body and a structured drape. That makes it a candidate for pieces that need to move but should not cling, such as commute trousers or knit jackets.
Best for: Urban commute, luxury sports and business-casual styles
Spandex-Free Cationic Waffle — C25330
100% Polyester (cationic) · 140 g/m² · 140 cm
Proof that spandex-free stretch can be combined with other functions. Our brochure describes this textured, cotton-like waffle as having excellent elasticity and recovery without spandex. It also has one-way moisture conduction and a wrinkle-resistant, iron-free finish.
Best for: Outdoor and training T-shirts, textured everyday tops
Elastane stretch
Soft Stretch Knit — XWP2011
88% Polyester / 12% Elastane · 190 g/m² · 152 cm
A mid-weight stretch knit with a soft, skin-friendly hand. The 12% elastane gives easy movement and reliable recovery without the heavy compression of a legging fabric. Wear resistance helps on shorts and other high-friction areas.
Best for: Sports shorts, yoga wear, loungewear, women's and urban casual apparel
Super-Soft High-Stretch Double-Knit — Y35721
76% Polyester / 24% Spandex · 240 g/m² · 155 cm
The highest elastane content in this selection. A 240 g/m² double-knit with 24% spandex has the elongation and hold that yoga pants and leggings need, and the double-face build adds coverage. Where compression and grip matter more than mono-material composition, this is the system to choose.
Best for: Yoga pants and leggings, luxury sports styles
Warp-Knit Stretch Jacquard Check — C25145
90% Polyester / 10% Spandex · 240 g/m² · 155 cm
A textured jacquard with good elasticity and resilience. Being warp-knitted gives it dimensional stability, so the check pattern does not distort when the fabric stretches. This is the elastane option for styled pieces rather than plain activewear.
Best for: Polo dresses, tennis and golf-inspired styles
Functions are as stated in Mibein spec sheets (XWP1018-1, XWP2011) or function brochures (S35808, C25330, C25145).
The products shown on this website represent only part of our fabric portfolio. Contact us for more fabric options, technical data, color cards, and sample support.
Experience
Recovery Is the Real Spec
Almost any knit stretches on the sampling table. Returns come from what happens later: knees that bag after a day's wear, elbows that stay rounded, waistbands that grow half a size by the tenth wash. That is a recovery problem. Stretch percentage alone will not predict it.
Where stretch fabrics usually fail
The fabric holds its shape when new, then keeps some of each stretch. Low-power constructions and tired elastane both show this, and it is most visible at knees, seat and elbows.
Chlorine, sunscreen and body oils, and high heat all shorten spandex life. Heat matters in the mill as well as at home. Our dye house disperse-dyes polyester at around 130 °C, while the fiber reference above puts spandex's long-term heat resistance below 100 °C. Poly/spandex recipes and heat-setting therefore have to be managed so the elastane keeps its power.
If tension or temperature varies across the stenter, the fabric can stretch differently at the selvedge and the centre. Pattern pieces cut from different zones then fit differently.
A spandex-free tee fabric used for a compression legging will feel loose. A 24% elastane knit used for a relaxed polo will feel clingy and hot. Most "recovery" complaints we see in briefs start here.
How we evaluate stretch and recovery at sampling
- 1Agree the target first.
We ask for the garment, the fit (relaxed, fitted or compression) and any reference fabric. Then we pick the system before we pick the quality.
- 2Test both directions.
Our physical lab has a stretch and recovery rack with hanging weighted frames. We record elongation and residual growth lengthwise and crosswise.
- 3Wash, then retest.
Our washing room has home-laundry washers and a standard reference washing machine.
Pick a garment
Which Stretch System for Which Garment
Yoga pants & leggings
These need high elongation, hold and opacity under deep flexion. Recovery in both directions matters most.
Joggers
Either. Elastane (XWP2011) for a soft, athletic fit; spandex-free double-knit (S35808) for a cleaner, structured leg
Joggers range from loungewear to commute wear, so the fit and look decide the system
Travel pants
Spandex-free double-knit: S35808
Structured drape and movement without cling. A single-fiber composition is also easier to care for on the road.
Polos
Polos need comfort stretch at the shoulder and a collar that keeps its shape, not compression
Performance tees
Light, breathable and quick to dry. The stretch comes without the elastane weight or heat sensitivity.
Bulk consistency
Keeping Stretch Consistent From Lot to Lot
A stretch program fails in bulk when width and elongation drift between dye lots. Our own mill knits, dyes and finishes in-house without subcontracting, so heat-setting stays under our own control. Heat-setting is the stage that fixes shrinkage, width, weight and handfeel, and on our stenter lines it runs with automated monitoring.
Every dye lot is graded to the US 100-yard 4-Point System, from the first lot through bulk.
In-house, no subcontracting
Knitting, dyeing and finishing at our own mill, so heat-setting stays under our own control.
Monitored heat-setting
Stenter lines run with automated monitoring at the stage that fixes shrinkage, width, weight and handfeel.
Replenishment
Selected core programs can be supported by greige-stock planning. Availability depends on the program.
Stock & sourcing
A Ready Fabric Library Behind Every Order
Beyond custom development, we keep 50+ greige fabric qualities in stock, so sampling and bulk orders start faster. Our team follows the market every season and recommends the colors and functional fabrics buyers are asking for.
Ready base fabrics across UV protection, cool touch, quick-dry and stretch, so most programs start from stock rather than from scratch.
Built around your order
Quantities, dye lots and delivery are planned around your program, from first sample yardage to repeat bulk.
Following market trends
We track what sells each season in outdoor, golf and summer active wear, and update the range to match.
Popular colors & functional picks
Tell us your market and price point. Our team recommends the colorways and functional fabrics currently in demand.
Sourcing for a distribution or wholesale program?
FAQ
Stretch Fabric FAQ
What is stretch fabric?
Stretch fabric is any fabric that extends under load and returns close to its original size when the load is removed. The stretch comes from an elastic fiber such as spandex (elastane), from an inherently elastic polyester fiber, from the knit or weave structure, or from a combination of these. Mibein's stretch range is knitted and covers both spandex-free and elastane-blend constructions.
What is the difference between 2-way and 4-way stretch fabric?
2-way stretch fabric stretches mainly in one direction, usually across the width. 4-way stretch fabric stretches and recovers both lengthwise and crosswise. For activewear that bends at the knee and hip, recovery in both directions matters more than the label. Full comparison.
Can stretch fabric be made without spandex?
Yes. Spandex-free stretch fabric gets its elasticity from inherent-stretch polyester fibers and the knit structure. Mibein's FLEXERA™ series (for example XWP1018-1, 100% polyester) and qualities such as S35808 and C25330 stretch and recover without any elastane.
Does spandex-free stretch recover as well as spandex?
At fiber level the reference data favours it: the FLEXERA™ comparison lists 95%+ elongation recovery after 500 cycles, against a significant decline for spandex. These are fiber reference values, not finished-fabric results. Spandex-free knits also stretch less than high-elastane knits, so they suit comfort-stretch garments rather than compression leggings.
How much spandex do leggings need?
Performance leggings commonly use roughly 15–25% spandex in a polyester or nylon knit, depending on the compression level and fabric weight. Our Y35721 double-knit for yoga uses 24% spandex at 240 g/m². Lower-elastane knits such as XWP2011 (12%) suit shorts and relaxed yoga wear better than compressive leggings.
Is stretch fabric recyclable?
It depends on the composition. Polyester/spandex blends are harder to recycle because the two fibers are difficult to separate. An all-polyester spandex-free fabric is a single-fiber system, which is easier to design for recycling. Actual recycling still depends on the whole garment, including trims and threads, and on the facilities available.
How do you test stretch and recovery?
Fabric is extended under a set load, held, released and then measured for residual growth, in both length and width. Our lab uses a weighted stretch and recovery rack for this.
Which should I choose for a polo or tee: spandex-free or elastane?
For most polos and performance tees, spandex-free stretch is the better starting point. It gives comfort stretch at the shoulder and back while staying light, quick-drying and mono-material. Choose an elastane blend only when the fit is meant to be close and body-hugging.
No question matches that search. Ask us directly.
Start sampling
Send Us the Garment, We'll Suggest the Stretch System
Tell us the garment, the fit and any fabric you are replacing. We'll recommend a spandex-free or elastane starting point and send swatches from both groups, so you can compare stretch and recovery yourself. Product development teams can read more about how we work with development teams.
- ASpandex-free swatch set
- BElastane swatch set
Before you source: Stretch fabric buyer's guide