window envelope Material:80/100/120gsm kraft or white paper Size:DL, DLX, C4, C5, C6, DZ all size as you need window ... red packet, kraft envelope as below:1) Size: Customized design2) Color: pantone colors as well as the common 4 colors (CMYK) ... process3) Material: white offset paper, kraft paper, special paper4) Finishes: Foil, Holographic, Emboss5) With Window, gummed ...