膨体纱

例句：

1. 1. The fabric is made from a special kind of synthetic fiber that expands when wet.
   这种面料是由一种特殊的合成纤维制成的，当它湿的时候会膨胀。
2. 2. The garment uses an innovative blend of materials to create a uniquely soft and stretchy feel.
   这款服装使用了创新的材料混合，创造出一种独特的柔软和可拉伸的感觉。
3. 3. The fabric's ability to hold its shape after washing makes it ideal for use in sportswear.
   这种面料在洗涤后保持形状的能力使其成为运动服装的理想选择。