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Again I can\'t be specific you would need to look at individual Retailer Specification Manauals. Generally speaking you are looking at +/- 10% for interlock and ribs; with +/- 7%; for other constructions of knitted fabric going into Tee-shirts, dresses and leggings. Others have a general requirement +3/-5% for wefts knits. If you look at the ASTM methods you may find some general specifications for knits not sure of the standard number