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what is denier? 

Denier is a unit of measure for the linear mass density of fibers & is expressed in grams per 9000 meters of the fiber


  • finer denier fibers behave more like down and feel more “fluid or gel-like” and are typically more costly

  • coarser denier fibers feel more “springy”.

  • true micro-denier fibers will be ≤1 Denier although the feel and performance at this level is not discernable

  • finer denier fibers are usually blown into a product

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