Bird eye mesh fabric is a double-knit sportswear fabric characterised by its distinct tiny eyelet pattern resembling a bird's eye. It matters because this structure provides superior dry-fit ventilation and capillary wicking for athletic apparel. For sportswear brand sourcing managers, the practical decision is to specify yarn counts, GSM (usually 130-160 GSM), and GRS certification criteria for recycled polyester options.Most existing sourcing guides talk about generic mesh fabrics, but they under-explain the technical differences in capillary moisture movement between circular-knit and warp-knitted bird eye meshes. This matters because incorrect fabric weight or loop geometry choice leads to poor sweat evaporation and garment transparency. This guide details fabric density standards, test methods, and moisture-wicking finishes so buyers can write precise tech packs.
The Physics of Bird Eye Mesh Construction
Unlike standard plain jerseys, bird eye mesh is knitted using a combination of tuck stitches and knit stitches. This creates a textured surface with micro-holes that increase the fabric's surface area. The physical benefits of this structure include:
- Capillary Wicking Action: Sweat is drawn from the skin's surface through the micro-pores to the outer layer of the fabric, where it spreads and evaporates rapidly.
- High-quality warp-knitted bird eye mesh has a lock-stitch structure knitted on an E28 needle gauge Karl Mayer HKS warp knitting machine, which prevents yarn unraveling when the fabric is cut or punctured under tension.
- Sublimation Printing Compatibility: The 100% polyester composition allows heat-press inks to penetrate the fibres deeply, maintaining bright colours and sharp printed patterns without fading.
Critical Specifications for Sportswear Buyers (Technical Data)
When sourcing bird eye mesh for athletic apparel, activewear panels, or lining materials, B2B buyers must specify exact parameters in their tech sheets. The table below outlines the core sourcing criteria:
| Sourcing parameter | B2B standard value | Performance purpose | Sourcing red flag |
|---|---|---|---|
| GSM (Fabric Weight) | 120 g/m² - 160 g/m² | Lightweight activewear panels and breathable shirts | Under 110 GSM can lead to fabric transparency and low burst strength. |
| Composition | 100% Polyester / Recycled PET | Durability, dye sublimation capability, and quick drying | High cotton percentage reduces moisture-wicking speed. |
| Yarn Specifications | 75D/72F high-filament polyester (vs 75D/36F) | 72F micro-fibres provide a softer handfeel and increased capillary surface area for superior moisture-wicking | Using standard 36F or lower filament yarns which feel stiff and wick sweat slowly. |
| Moisture Wicking | Hydrophilic finish / capillary construction | Fast sweat absorption and dry-fit performance | Simple wicking washes that wash out in under 15 laundry cycles. |
| Tensile/Burst Strength | Bursting strength > 250 kPa (knitted on E28 needle gauge Karl Mayer HKS machine) | Prevents activewear seams from splitting during sports | Low yarn density or thin gauge loops that tear easily. |
| GRS Compliance | Scope Certificate (SC) & Transaction Certificate (TC) | Global Recycle Standard compliance for brand marketing | Suppliers offering recycled claims but refusing to provide official TC documents. |
Quality Control and Testing Standards
To verify that the bulk bird eye mesh fabric performs under intensive activewear conditions, the following international testing methods should be referenced:
For a detailed check on sportswear specifications, see our guide on choosing breathable mesh fabric for sportswear. If you are comparing knit options, refer to our analysis on warp knit vs weft knit structures.
- AATCC 197 / AATCC 198: Standard test methods for vertical wicking of textiles and liquid moisture management properties.
- ASTM D3786: Standard test method for hydraulic bursting strength of textile fabrics (diaphragm bursting strength tester method).
- AATCC 61: Color fastness to laundering to ensure sublimation prints do not run or fade during repeated washing cycles.
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Frequently Asked Questions
What is the minimum order quantity (MOQ) for custom-dyed bird eye mesh fabric?
The standard MOQ for custom-dyed warp-knit bird eye mesh is 200 kg to 300 kg per colour. For GRS-certified recycled polyester, the MOQ may vary based on yarn availability.
Can bird eye mesh fabric be finished with anti-odor properties?
Yes. Bird eye mesh can be treated with antimicrobial silver-ion finishes during the dyeing process to prevent odor-causing bacteria growth on sportswear panels.
How do you verify the recycled claim for GRS bird eye mesh?
Sourcing managers should request the supplier's GRS Scope Certificate (SC) to verify the mill's audit status, and request the official Transaction Certificate (TC) for every bulk order shipped.
Send Fabric Enquiry
Send your sourcing specifications for bird eye mesh fabric, including required GSM, yarn counts, and GRS certification needs, through the Changle Textile inquiry form to receive a detailed factory quote.