... specs as customer's requirements 100% spun polyester sewing threadis made of texturized polyester filament and endowed smooth feel, good elasticity ... .1.Materials:100% Polyester Yarn(20S, 30S, 40S, 50S, 60S, 80S) with ... safety belts, electronic goods, leather shoes, clothes shoes, straps, handbag,toy, basketball, football, kite, net pipe and triangle straps and ...