Performance knit fabric is the backbone of modern activewear, athleisure, and functional apparel. Unlike conventional fabrics, performance knits are engineered to manage moisture, regulate temperature, provide stretch, and withstand rigorous use. Mibein specializes in manufacturing high-performance knit fabrics for global apparel brands.
What Is Performance Knit Fabric?
Performance knit fabric is a technical textile engineered for specific functional outcomes. Unlike commodity fabrics, each performance knit is designed from the yarn up to deliver targeted properties: moisture wicking, breathability, stretch recovery, UV protection, thermal regulation, or durability. The Wikipedia article on knitted fabric explains the fundamental structure. Performance knits take this structure and enhance it through fiber selection, yarn engineering, knit construction, and finishing treatments.
Knit vs Woven: The Structural Difference
The fundamental difference between knit and woven fabric is how the yarns are arranged: In woven fabric, two sets of yarns (warp and weft) cross at right angles, creating a stable, non-stretch structure. In knit fabric, a single yarn forms interlocking loops. This loop structure gives knit fabric its characteristic stretch, breathability, and soft hand feel. For sportswear and activewear, knits are overwhelmingly preferred because they move with the body, allow air circulation, and provide comfort during physical activity. Mibein’s product range focuses exclusively on high-performance knit constructions.
Key Performance Properties
Performance knits are defined by measurable attributes. Moisture wicking moves sweat away from the skin through capillary action, measured by AATCC 195. Breathability allows air to pass through the fabric, measured by air permeability (CFM). Stretch and recovery provide freedom of movement and shape retention. Durability against abrasion, pilling, and tearing ensures the garment performs over time. Each property can be engineered independently — a fabric can be highly breathable without being stretchy, or extremely durable without being moisture-wicking. The right combination depends on the end use. The ASTM International standards provide testing protocols for all these properties.
Common Types of Knit Fabric
| Knit Type | Structure | Stretch | Best For |
|---|---|---|---|
| Single Jersey | Simple knit, face and back differ | Moderate | T-shirts, sports tops, dresses |
| Double Knit | Two layers knitted together | Good | Polo shirts, skirts, jackets |
| Interlock | Two interlocked single jerseys | Excellent | Activewear, base layers |
| French Terry | Loops on back, smooth face | Moderate | Hoodies, joggers, loungewear |
| Fleece | Brushed back for warmth | Low-moderate | Jackets, cold-weather layers |
| Mesh | Open hole structure | Low | Ventilation panels, liners |
| Rib Knit | Vertical wales on both sides | High | Cuffs, collars, fitted garments |
| Pique | Tennis ball texture | Moderate | Polo shirts, golf apparel |
Fibers Used in Performance Knits
Polyester is the most common fiber in performance knits due to its excellent moisture wicking, durability, and cost-effectiveness. Nylon offers superior strength and a softer hand feel. Elastane/Spandex provides stretch and recovery when blended with other fibers. Cotton is used in blends for comfort but reduces wicking performance. Tencel and Modal offer natural softness with moderate performance. Recycled polyester (rPET) is increasingly popular for sustainability. Mibein offers fabrics using recycled and sustainable fibers across its product line.
How Performance Knit Fabric Is Made
The process begins with yarn selection. Fibers are chosen for their properties, then spun into yarns. The yarns are knitted on circular knitting machines, which create the fabric tube. The greige (unfinished) fabric then undergoes finishing: scouring (cleaning), dyeing (coloring), and then mechanical or chemical finishing to add performance properties. Finishing can include wicking treatments, anti-pilling treatments, brushing for softness, and compacting for shrinkage control. Mibein’s manufacturing capabilities span the entire process from yarn to finished fabric.
How Performance Is Tested
Performance properties are verified through standard test methods. Moisture management is tested using AATCC 195 (moisture management tester) which measures wicking rate, absorption, and one-way transport. Breathability is measured by air permeability (ASTM D737) in cubic feet per minute (CFM). Stretch and recovery follow ASTM D3107. Pilling resistance uses ASTM D4970 (Martindale) or ASTM D3512. Color fastness tests verify resistance to washing, light, and crocking.
How to Choose the Right Performance Knit
Define the end use first. High-intensity sports need maximum wicking and breathability with 4-way stretch. Casual athleisure balances comfort with moderate performance. Outdoor apparel needs UV protection and durability. Then consider the weight (GSM): lighter fabrics (100-180 GSM) for warm weather and high intensity, mid-weight (180-250 GSM) for year-round training, heavier (250+ GSM) for outerwear and cold weather. Finally, verify certifications like OEKO-TEX Standard 100 for safety and GRS for recycled content. Mibein’s fabrics carry multiple certifications to meet global brand requirements.
Applications by End Use
Luxury sports (golf, tennis, yoga): cotton-feel performance knits with 4-way stretch. Active outdoor (hiking, running): moisture-wicking mesh and lightweight jerseys. Urban commute: breathable, wrinkle-resistant knits with anti-odor properties. Smart casual: structured knits that mimic woven aesthetics with knit comfort. Each application requires a different balance of performance properties.
FAQ
What is the difference between knit and woven fabric?
Knit fabric is made from interlocking loops, giving it stretch and breathability. Woven fabric has yarns crossing at right angles, making it more stable but less stretchy.
What are the most performance knit fabric types?
Single jersey for lightweight tops, double knit for structured garments, interlock for activewear, French terry and fleece for casual wear, mesh for ventilation.
How is performance knit fabric tested?
Through standardized tests: AATCC 195 for moisture management, ASTM D737 for breathability, ASTM D3107 for stretch, ASTM D4970 for pilling resistance.
What fiber is best for performance knit fabrics?
Polyester is most common for its wicking and durability. Nylon for softness and strength. Blends with spandex add stretch. Recycled polyester for sustainability.
How do I choose the right performance fabric?
Define the end use, required properties, weight (GSM), and certifications. Work with an experienced manufacturer who can recommend the right construction.
Source Performance Knit Fabric from Mibein
Need high-performance knit fabric for your next collection? Mibein has 20+ years of experience engineering performance knits for global brands. From moisture-wicking single jerseys to technical double knits, we deliver fabrics that perform. Contact our team for fabric samples and technical specifications.