... 2.made of nylon/polyester 3Greatforpackage binding,luggage,toys,sports equiment,garments ect,durable 4SGS/RO velcro(hook and loop/Velcro tape ... some was made of cotton,which proved to be impractical.Nylon and polyester are the fibers most commonly used now. 3)Specifications ... & Loop Co., Ltd specialized in manufacturing all kinds of nylon velcro tie, hook&loop,elastic velcro, velcro tape,velcro straps ...