bra straps material:nylon,spandex width:3mm~150mm ,also can be changed ... guangdong,china ,which specializing in shoulder straps,bra straps,lace straps,trouser straps,computer jacquard straps,lace straps,embroidery straps,mercerized plane straps. certification: We are ISO9001:2000 standard ... to our factory for investigation.your own designs are welcomed. bra straps