Optimal 10 x 14 Proportions: Generously sized to easily fit standard A4 papers, B4 documents, thick brochures, thick magazines,catalogs, and certificates without bending or creasing the edges. Fine Quality 100 GSM Construction: Made from premium 100 GSM paper that feels distinctly professional and provides a sturdy, rigid structure for your important mail. Tear-Proof Cloth Reinforcement: Featuring an integrated cloth netting that makes the envelope highly resistant to punctures, splits, and tears during heavy transit. 100% Opaque & Secure: The thick, dark green exterior completely conceals the contents inside, guaranteeing maximum privacy for confidential contracts, legal files, and financial records. Bulk Value Pack: Conveniently packaged in a bundle of 100 envelopes, perfect for maintaining a reliable supply for high-volume daily office or warehouse dispatch. Ready for Shipping Labels: The smooth premium paper surface cleanly accepts permanent markers, ballpoint pens, stamps, and adhesive courier labels without smudging or peeling.