YouTube: There are trends that yoga pants, sports suits and other types with elastic waistband become more and more popular in garment industry. It’s not easy to sew fast and precisely with hands controlling the elastic material. With our Double Needle Sewing Machines, we are able to hem the elastic band fixed inside the waist loop. This Industrial Sewing Machine model IH-8722DP is perfect for elastic waistband hemming. It’s equipped with specific sewing machine parts: pneumatic stretching control device. The circle size of waistband range from 75-140cm as regular size, for bigger size customization, please discuss with us for using longer gear of sewing machine parts fitting, it’s possible to sew oversize elastic waistband with this machine. Specification of the double…