Knit and woven fabrics serve different purposes in sportswear. Understanding the difference helps you choose the right fabric for each garment type. Mibein specializes in performance knit fabrics engineered for activewear applications.
Why the Difference Matters
The structure of a fabric determines how it stretches, breathes, drapes, and wears. Choosing the wrong fabric type can ruin a garment’s performance. According to the Wikipedia article on woven fabric, woven textiles have been used for millennia, but modern performance applications increasingly demand the unique properties of knits.
Structural Differences
Knit fabric is made from interlocking loops of yarn, creating a stretchable, breathable structure. Woven fabric is made from two sets of yarns crossing at right angles, creating a stable, non-stretch structure. Knits can stretch 20-50% depending on construction. Wovens stretch less than 5% unless elastane is added. This fundamental structural difference drives all other performance differences between the two fabric types. Mibein’s moisture-wicking knits are engineered for maximum performance.
Stretch and Recovery
Knit fabrics offer inherent stretch due to their loop structure. A single jersey knit can stretch 20-30% without elastane. Adding 5-10% spandex increases stretch to 50-60% with excellent recovery. Woven fabrics have minimal inherent stretch. Adding elastane to woven fabric (e.g., stretch cotton) provides 10-20% stretch at most. For high-intensity sportswear requiring full range of motion, knits are the clear winner. The ASTM D3107 standard measures stretch and recovery properties.
Breathability and Airflow
The open loop structure of knits inherently allows more air passage than woven fabrics. A typical single jersey knit has an air permeability of 30-100 CFM, while a woven fabric of similar weight may achieve only 5-20 CFM. For activewear where temperature regulation is critical, knits’ superior breathability is a significant advantage. Mesh knits can achieve 200+ CFM for maximum ventilation applications.
Durability and Abrasion Resistance
Woven fabrics generally offer superior abrasion resistance due to their tighter, more stable structure. For applications like outer shells and backpack straps, wovens are preferred. However, modern performance knits with high-denier yarns and tight constructions can achieve excellent durability. Double knits and interlock constructions offer the best durability among knit types.
Comfort and Hand Feel
Knits are universally favored for next-to-skin comfort. The loop structure creates a softer, more flexible hand feel. Wovens can feel stiff by comparison. For base layers, T-shirts, and any garment worn directly against the skin, knits are the standard choice. Our stretch fabric collection combines knit comfort with performance.
Side-by-Side Comparison Table
| Property | Knit Fabric | Woven Fabric |
|---|---|---|
| Structure | Interlocking loops | Crossed yarns (warp/weft) |
| Stretch (inherent) | 20-50% | <5% |
| Breathability (CFM) | 30-100+ | 5-20 |
| Abrasion resistance | Good to excellent | Excellent |
| Drape | Soft, fluid | Crisp, structured |
| Wrinkle resistance | Excellent | Moderate |
| Best for sportswear | Base layers, tops, leggings | Outer shells, shorts |
| Manufacturing cost | Lower to moderate | Moderate to higher |
Which Is Better for Sportswear?
For most sportswear applications, knits are the preferred choice. The stretch, breathability, and comfort of knits align perfectly with the demands of active movement. Wovens have their place in specific applications: outer shells, structured garments, and items where durability is the primary concern. For a complete activewear line, a combination of knit and woven fabrics is ideal, with knits forming the majority of the collection.
Best Applications for Each
Knit: T-shirts, tank tops, leggings, yoga pants, sports bras, base layers, hoodies, joggers, polo shirts. Woven: Running shorts (lined), windbreakers, track jackets, outer shells, structured vests, backpack straps. Many modern sportswear brands use knits for 70-80% of their collection and wovens for the remaining 20-30%. Check our contact page for expert guidance on fabric selection.
Can They Be Combined?
Yes. Many garments combine knits and wovens strategically. A jacket might have a woven outer shell with knit lining. A training top might have a knit body with woven panel inserts for structure. Understanding both fabric types allows designers to use each where it performs best.
FAQ
Is knit or woven fabric better for sportswear?
Knit is generally better for sportswear due to its stretch, breathability, and comfort. Woven is better for outer shells and structured items.
Can woven fabric stretch?
Woven fabric has minimal inherent stretch. Adding elastane/spandex provides some stretch (10-20%), but less than knits.
Which fabric type lasts longer?
Woven fabrics typically offer superior abrasion resistance, but quality performance knits with proper construction can be equally durable.
What is the most common fabric for activewear?
Performance knit fabric, particularly polyester/spandex blends, is the most common choice for activewear.
Performance Knit Fabric from Mibein
Build your sportswear line with performance knits from Mibein. Over 20 years of knit fabric manufacturing experience, from single jersey to technical double knits. Request swatches and technical data sheets. Contact our team today.