Warm Polyester Double-Knit Activewear Fabric

An air-layer fabric uses a structured construction that creates space between its surfaces. This internal layer gives A3430 a fuller, more three-dimensional body than a thin, compact stretch fabric while helping it remain soft and flexible.

Yes. The internal air-layer structure helps retain a layer of air and reduce rapid heat loss, providing comfortable warmth for outdoor activities and cooler conditions. It can offer insulation and structure without requiring a thick fleece surface, although the final warmth also depends on garment design and wearing conditions.

A3430 is recommended for women’s leggings and activewear jackets. Its four-way stretch supports movement in fitted leggings, while the air-layer structure and 330 g/m² weight provide the body and shape required for athletic jackets.

At approximately 330 g/m², A3430 provides substantial coverage, a fuller silhouette and more structure than lightweight activewear fabrics. It is suitable for leggings and jackets requiring body and support, but buyers should confirm that its weight and thermal comfort match the intended season and garment design.

Buyers should evaluate the cloud-soft hand feel, air-layer structure, colour, nominal weight, usable width, stretch, recovery, coverage, pilling resistance and dimensional stability. Sample yardage should be converted into leggings or a jacket, and an approved physical sample should be retained as the bulk quality reference.