... portfolio file folder 1.100% polyester 2. Lager capacity 3. Nylon zipper 4. For school & business Item600D polyester portfolio file folderMaterial600D ... usLOGO processing optionsScreen printing (often to use on bags made by polyester, nylon, cotton, PU leather),High frequency ... and Genuine Leather) ,Embroider (often to use on bags made by polyester, nylon, cotton, Spun fabric). sublimation heat ...