White lightweight DuPont™ Tyvek® catalog envelope.
DuPont™ Lightweight Tyvek® catalog envelopes are strong and moisture resistant, yet light as a cloud in weight. Security of contents is enhanced by an inside printed tint pattern. Convenient Redi-Strip® closure requires no moisture to seal. Treated with an antimicrobial agent to protect the envelope from the growth of bacteria, mold, mildew, fungus and odors.