What is the defining characteristic of satin fabric?

The defining characteristic of satin fabric is its shiny and smooth surface. Satin is known for its luxurious appearance, which comes from the way the weave is constructed. The weave typically involves floating warp threads over several weft threads, which gives satin its distinctive glossy finish on one side and a duller back. This shine makes satin a popular choice for formal wear, such as evening gowns and wedding dresses, where a rich, elegant look is desired.

While other fabric characteristics may include a textured surface, weight, or elasticity, these are not fundamental traits of satin. Satin's smooth, lustrous effect is what sets it apart from other fabrics and is primarily what makes it desirable in fashion design. This sheen and softness contribute greatly to how the fabric drapes and moves, enhancing its appeal for various garment types.