Recycled Polyester (Sheath Fiber) Recycled polyester is made from recycled PET waste and can be GRS certified. It has strong wrinkle resistance, stable color fastness and good shape retention. As a part of the outer sheath, it shields the inner spandex core from friction during weaving and dyeing. It increases yarn strength, reduces fabric pilling and helps cut carbon emissions for sustainable textile projects. Cotton (Sheath Fiber) Cotton is natural cellulosic fiber known for great moisture absorption and air permeability. Mixed with recycled polyester in the outer layer, it gives fabrics a soft and skin-friendly touch. Cotton can absorb dyes evenly to get warm and natural colors. It relieves the slightly rigid hand feel of recycled polyester and delivers pleasant comfort for direct skin contact. Spandex (Core Filament) Spandex acts as the elastic core of the core-spun yarn. It comes with high elongation and excellent rebound property. Fully covered by recycled polyester and cotton…
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