In patterns created for knit fabrics you will often see a note about the recommended ‘stretch percentage’ of the fabric. Put simply, stretch percentage is a measure of the fabrics ‘stretchy-ness’ and is the difference between your new pants fitting like a glove or you squirming around on the bed unable to get then past
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PDF) Effect of Weave on Width Shrinkage of Commercially Produced Two Way Stretch Denim Fabric