B006 is a premium 120 gsm single jersey nylon spandex fabric for sleepwear, engineered to deliver an exceptional balance of lightweight comfort and high-stretch performance. Composed of 80% Nylon / 20% Spandex, this weft-knitted fabric is specifically designed for next-to-skin applications, including high-end loungewear, underwear, and lightweight activewear. With its 120G/M2 weight and ultra-fine 46-gauge construction, it serves as a cooling, breathable, and highly durable textile solution for global brands seeking a reliable nylon spandex single jersey fabric supplier.
Key Specifications
| Parameter | Specification |
|---|---|
| Item Code | B006 |
| Description | single jersey |
| GSM | 120G/M2 |
| Width | 150CM |
| Knitting | - |
| Composition | 80% Nylon / 20% Spandex |
| Yarn | - |
The Science of Stretch: 80% Nylon / 20% Spandex Composition

The B006 120 gsm nylon spandex single jersey fabric features a precise blend of 80% Nylon / 20% Spandex. This ratio sits at the optimal upper threshold of the industry-standard activewear range (70%–80% nylon and 20%–30% spandex), which is highly regarded for balancing elastic performance with structural integrity. The nylon fibers provide strength, abrasion resistance and good elastic recovery, ensuring that the finished garments retain their shape and resist wear over time. Meanwhile, the 20% spandex integration delivers high stretch with strong elastic recovery, allowing the fabric to comfortably contour to the body during movement.
Compared to our D023 fabric (which features 88% Nylon / 12% Spandex), the B006 contains 8% more spandex. This higher spandex ratio provides significantly stronger stretch and recovery, making B006 ideal for close-fitting garments that require dynamic elongation. By capping the spandex content at 20%, the fabric avoids the durability loss often associated with spandex ratios exceeding 30%, maintaining an excellent balance of elasticity and long-term strength.
Ultra-Fine 46-Gauge Knitting and Filament Yarn Construction
The exceptional hand feel of this 120 gsm single jersey fabric for sleepwear is achieved through high-density 46-gauge knitting and the use of continuous filament yarns. In weft-knitting, a 46-gauge setup represents an ultra-fine, high-density tier compared to standard 32, 36, 40, or 44-gauge machines. This dense knitting structure ensures that the loops are incredibly fine and uniform, resulting in a fabric surface that is exceptionally smooth, flat, and soft against the skin.
By utilizing continuous filament yarns, B006 achieves a highly uniform surface texture with a natural, matte appearance. Unlike spun yarns, filament yarns lack loose fiber ends, which minimizes the risk of fuzzing and pilling while maximizing the fabric's overall tensile strength. This combination of 46-gauge knitting and filament yarn makes B006 highly suitable for premium, next-to-skin intimate apparel and sleepwear lines.
Lightweight Comfort and Cooling Performance at 120G/M2

Weighing 120G/M2, B006 is a lightweight fabric designed for maximum breathability and a distinct cooling sensation. This weight represents the lower limit of the typical 120–230 g/m² range for nylon-spandex weft-knitted fabrics, making it highly suitable for hot-weather wear and base layers. The lightweight weft-knit structure allows rapid heat dissipation and moisture transfer, offering a refreshing and comfortable wearing experience.
With a standard width of 150CM, B006 aligns with the standard 150–165 cm width range for weft-knitted fabrics. While 150CM is a relatively narrow specification, it provides excellent stability during cutting and sewing. Apparel manufacturers and product developers should factor this 150CM width into their marker planning to optimize fabric yield and minimize cutting waste during production.
Target Applications for B006 Nylon Spandex Fabric
Due to its lightweight 120G/M2 weight, 46-gauge softness, and 20% spandex elasticity, B006 performs exceptionally well across several product categories:
- Sleepwear & Loungewear: The silky, breathable, and skin-friendly texture makes it an excellent choice for high-end pajamas, nightgowns, and relaxed loungewear.
- Underwear & Lingerie: Ideal for lightweight brassieres, seamless underwear, and base layers that require a soft touch and close-to-body fit.
- Activewear & Yoga Wear: The high stretch with strong elastic recovery supports dynamic movements in yoga tops, lightweight fitness wear, and cycling jerseys.
- Swimwear: The 80% Nylon / 20% Spandex blend is the mainstream choice for premium swimwear, offering reliable shape retention in wet conditions.
- Linings & Casual Wear: Its low weight makes it an ideal lining fabric for lightweight jackets and sportswear, as well as breezy summer T-shirts and undershirts.
FAQ
What makes B006 highly suitable for close-fitting sleepwear and underwear?
B006 is exceptionally soft and skin-friendly because it is knitted on high-density 46-gauge machines using smooth filament yarns. This construction minimizes surface fuzziness, while its lightweight 120G/M2 weight ensures maximum breathability and a cooling sensation for overnight comfort.

How does B006 compare to the D023 fabric?
B006 is a lightweight fabric (120G/M2) with 80% Nylon / 20% Spandex, offering superior stretch and a delicate hand feel for summer and intimate wear. In contrast, D023 is a mid-weight fabric (180G/M2) with 88% Nylon / 12% Spandex, providing more structural support and balanced durability for all-season activewear.
Can B006 be customized with functional finishes?
Yes, we can apply various functional treatments to B006 according to your order requirements. Customization options include moisture-wicking, quick-dry, anti-bacterial, UV protection, anti-yellowing, and flame retardant finishes, with color fastness achievable up to grade 4 or higher.
Does B006 provide good shape retention for activewear?
Yes, the 20% spandex composition ensures high stretch with strong elastic recovery, allowing garments to stretch dynamically and return to their original shape without sagging. The 80% nylon base further enhances this with its inherent strength and good elastic recovery.
What aesthetic finishes are available for this fabric?
We offer B006 in dyed or printed formats. Brands can choose from different luster effects, including matte, semi-dull, or shiny finishes, and customize the yarn count from 20D to 150D to achieve their desired fabric density and weight.
Ordering & Customization
As a professional nylon spandex single jersey fabric supplier, we provide flexible customization options for B006 to align with your brand's specific design and performance requirements. We can adjust the yarn count within the 20D–150D range to modify the fabric's weight and density. Additionally, we support custom adjustments to both the GSM and the 150CM width based on your production needs.
For functional upgrades, we offer advanced finishes such as moisture-wicking, quick-dry, antibacterial, UV protection, anti-yellowing, and flame retardance. You can also specify your preferred visual style, choosing from matte, semi-dull, or shiny finishes, with guaranteed color fastness of grade 4 or above. Contact us today to discuss your custom specifications and request a sample roll for your next collection.
Written by Wenruo
Textile Engineer, Forall Lab