pbt stretch yarn we can do as customers' requirements .type,include:50D/ ... /36F,100D/36F,125D/36F,300D/72F,150D/48F pbt stretch yarnAlthough the fiber made by PBT has the similar characters ... in lots of areas especially making swimsuit,training wear,elasticized jeans and bandage for medical treatment.Space:30D-300D(DTY)