Crafted from 300gsm cardstock, these envelopes provide a substantial feel and complete opacity, ensuring the contents remain private. While they are flexible and not designed for fragile items like glass or bend-sensitive photos, they are significantly more durable than standard 80gsm paper envelopes, reducing the risk of rips and tears during transit. With internal dimensions of 325mm x 235mm, these mailers act as a "loose fit" for A4 documents, meaning you can slide in thicker stacks of paper, magazines, or catalogues without struggling to close the flap or damaging the corners of your documents. Best Used For: Business Contracts & Legal Documents Magazines, Brochures & Catalogues Resumes & Cover Letters General Office Correspondence Soft-cover booklets