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Nylon Spandex Fabric Guide: Best Fabric for Swimwear, Activewear & Performance Apparel

Everything you need to know — fabric types, GSM, stretch %, care tips, and how to choose the right material for your project. For the broader decision framework, start with our how to choose fabric guide.

What Is Nylon Spandex Fabric?

Nylon spandex fabric is a performance textile blend of two synthetic fibers: nylon (polyamide) and spandex (elastane/Lycra®). The nylon provides durability, abrasion resistance, and a silky hand feel. Spandex — even at just 8–30% of the blend — gives the fabric exceptional stretch and elastic recovery.

When these two fibers combine, you get a fabric that stretches in multiple directions and snaps back to its original shape without distortion. This is called four-way stretch with high recovery — the gold standard for garments that need to move with the body over hundreds of wears and washes. Learn more about how stretch works in our stretch fabric types guide.

Most nylon spandex is constructed as a circular knit or warp knit (tricot). Typical ratios are 80/20 or 82/18 nylon-to-spandex, engineered to match the demands of the end garment — whether that's a competitive swimsuit, yoga tight, or compression sleeve.

Quick fact: "Nylon spandex" always refers to a blend. Pure spandex has no structural strength on its own — the nylon provides the body, the spandex provides the stretch. For a fiber-level overview, see our spandex fabric guide.

Why It Performs

Key Benefits of Nylon Spandex Fabric

Stretch & Recovery

Stretches up to 500% and returns to shape immediately. No sagging or bagging, even after extended wear.

Durability

Nylon is the most abrasion-resistant synthetic fiber. Outlasts polyester blends in swimwear and cycling shorts.

Moisture-Wicking

Pulls sweat away from skin to the surface where it evaporates quickly. Keeps athletes dry and comfortable.

Soft Hand Feel

Nylon's finer fiber creates a silkier touch compared to polyester — essential for premium next-to-skin garments.

Color Vibrancy

Absorbs dyes richly and uniformly. Colors stay vivid after repeated washing, especially with sublimation printing.

Chlorine & UV Resistance

Resists chlorine degradation and UV exposure — critical for swimwear and outdoor activewear.

  • Four-way stretch for unrestricted range of motion
  • Rapid moisture transport and quick-dry performance
  • Maintains shape through high-heat and high-rep workouts
  • Excellent sublimation print clarity and color retention
  • Resistant to pilling, snagging, and abrasion
  • Lightweight — high performance without added bulk

Applications

Common Uses of Nylon Spandex Fabric

01 Swimwear

The premier choice for competitive and recreational swimwear. Resists chlorine, saltwater, and UV. Holds shape and compression even when wet. Full guidance in our swimwear fabric guide.

02 Activewear

Yoga tights, sports bras, cycling shorts, running leggings — athleisure fabric delivers the stretch, moisture management, and durability active lifestyles demand. See the activewear fabric guide.

03 Dancewear

Dancewear fabric provides the full range of motion required for ballet, contemporary dance, gymnastics, and figure skating without any restriction. See the dancewear fabric guide.

04 Compression Wear

Medical-grade and athletic compression garments rely on nylon spandex's controlled elasticity. Delivers consistent compression without losing grip. Solid spandex in black, navy, and red dominates this category.

05 Shapewear & Intimates

Lightweight, smooth, and form-fitting. The standard substrate for shaping undergarments, bodysuits, and intimate apparel.

06 Team & Uniform Apparel

Used in custom sublimation jerseys and fitted uniforms. Sublimation spandex tricot accepts vivid full-coverage prints while maintaining athletic performance. For golf and country club apparel, lightweight UV-resistant polyester variants are preferred.

Fabric Types

Types of Nylon Spandex Fabrics

TRICOT
Nylon Spandex Tricot

A warp-knit fabric with a smooth face and fine rib back. Low-pill, run-resistant. Preferred for swimwear linings, leotards, and close-fitting activewear. Excellent sublimation base. See our swim mesh & lining guide for full details on tricot lining applications.

Shop Tricot →
POWER MESH
Nylon Spandex Power Mesh

A sheer, open-knit fabric providing structure and breathability. Used as overlays in activewear, side panels in leggings, and lining in swimwear and shapewear. Full handling tips in our mesh & lining fabric guide.

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BRUSHED
Brushed Nylon Spandex

A mechanically finished fabric with a soft, fleece-like inner surface. Ideal for winter activewear, fleece-lined leggings, and cold-weather performance garments. For maximum warmth, spandex fleece (Pro Stretch) uses a thicker pile.

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COMPRESSION
Compression Nylon Spandex

A denser, higher-GSM fabric with a tighter knit engineered for graduated or uniform compression. Used in athletic shorts, medical garments, and recovery wear. Most often available as solid spandex in black and core colors.

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METALLIC
Metallic / Foil Nylon Spandex

Nylon spandex base bonded with a metallic foil or holographic surface — used in dancewear, competition costumes, gymnastics leotards, and festival wear. The foil coating preserves four-way stretch while adding maximum stage lighting impact. See our fabric finishes guide for handling and care specifics.

Shop Metallic Spandex →

Comparison

Nylon Spandex vs Polyester Spandex

Both are stretch fabrics used in performance apparel, but they differ in important ways that should influence your selection. For the full polyester side of the story, see our printed spandex fabric guide.

Feature Nylon Spandex Polyester Spandex
Hand Feel Silky, smooth, soft Winner Slightly rougher texture
Abrasion Resistance Excellent Winner Very good, slightly lower
Chlorine & Water Resistance Superior — ideal for pool & ocean Winner Good, degrades faster in chlorine
Color Vibrancy Rich, deep color absorption Winner Good, slightly less saturated
Moisture Wicking Excellent Excellent — comparable
Price Point Moderate to premium Budget to moderate Lower Cost
Best Use Cases Swimwear, premium activewear, dancewear, compression Budget performance wear, team jerseys, outdoor activewear
Sublimation Printing Excellent Excellent — polyester is the standard base

Choose Nylon Spandex when: You need the highest tactile quality and durability — swimwear, premium yoga lines, competition dancewear, close-fitting compression. Nylon's chlorine resistance and softer feel far exceed polyester for these applications.

Choose Polyester Spandex when: Cost management is critical, or sublimation printing is the primary goal. Polyester is the standard sublimation base and is available as recycled rPET for sustainability-focused brands.

Buying Guide

How to Choose the Right Nylon Spandex Fabric

Step 01

Determine GSM Weight

150–180 GSM for liners and leotards. 190–220 GSM standard for leggings and swimwear. 230+ GSM for shapewear and structured compression wear. Full benchmarks in our GSM & fabric weight guide.

Step 02

Check Stretch %

Most nylon spandex offers 50–100% four-way stretch. Higher spandex content (20–30%) = more stretch. Lower (8–12%) = more structure. Match to range of motion needed.

Step 03

Match to End Use

Swimwear needs chlorine-resistant tight knit. Yoga wear needs squat-proof smooth fabric. Compression needs dense weave. Dancewear needs light, high-stretch fabric.

Step 04

Consider Lining Needs

Swimwear and active shorts often need a separate lining (tricot or power mesh). Always test opacity under stretch before committing — what looks opaque flat may be sheer at 50% stretch.

Pro tip: Always order swatches and do a real-world stretch test before committing to full yardage. Sew test seams per the sewing stretch fabric guide. Use our Fabric Yardage Estimator to calculate exactly how much you need. Browse new arrivals for the latest fabrics.

Garment Care

How to Care for Nylon Spandex Fabric

Full laundering, storage, and longevity guidance in our fabric care guide.

Cold Wash

30°C / 86°F max. Hot water breaks down spandex over time.

Gentle Cycle

Reduces mechanical stress on the knit and elastane fibers.

No Bleach

Degrades both nylon and spandex fibers rapidly.

Air Dry Flat

Dryer heat causes spandex to lose elasticity permanently.

Mild Detergent

Use sport-specific or pH-neutral detergent. Avoid harsh enzymes.

Rinse After Swimming

Cold fresh water rinse immediately after pool or ocean use.

Still not sure which nylon spandex variant fits your project? Our expert help & advice team can match a fabric to your specific use case, and the fabric, shipping & orders FAQ answers most pre-purchase questions.

FAQ

Nylon Spandex Fabric — Frequently Asked Questions

What is nylon spandex fabric used for?

Swimwear, activewear (leggings, sports bras, yoga pants), dancewear, gymnastics leotards, compression garments, shapewear, and athletic uniforms. It's the go-to textile wherever the body needs unrestricted movement and the garment needs to hold its shape under repeated stress.

Is nylon spandex good for swimwear?

Yes — it's widely considered the best fabric for swimwear. Nylon resists chlorine far better than polyester, maintains shape and color when wet, and provides the right balance of compression and comfort for competitive and recreational use. Full details in the swimwear fabric guide.

Does nylon spandex shrink?

Very low shrinkage when cared for correctly. The main risk is heat — tumble drying on high heat or hot washing can cause spandex fibers to contract and reduce elasticity. Always wash cold and air dry to maintain the garment's original fit. See the fabric care guide for the complete routine.

How stretchy is nylon spandex fabric?

Most nylon spandex offers 50–100% four-way stretch. An 80/20 blend has more stretch and recovery than a 90/10 blend. High-stretch versions (20–30% spandex) are common in compression wear and dancewear. The stretch fabric types guide covers stretch percentages across every fabric category.

What GSM is best for nylon spandex leggings?

200–230 GSM is ideal for most leggings — opaque, squat-proof, good compression, and durable for regular gym use. 170–190 GSM works for lighter yoga wear; 240+ GSM suits shapewear or thicker compression shorts. Full benchmarks in the GSM & fabric weight guide.

Can nylon spandex be sublimation printed?

Yes, but it requires a fabric prepared for the process. Best results come from smooth-face nylon spandex tricot. Nylon-compatible sublimation inks and precise temperature calibration are required. Always run test prints before a full production run. See the printed spandex fabric guide for the full process.

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