Ensure the confidentiality of your documents with our opaque plastic envelopes. Engineered for durability, these Blue Label envelopes boast a sturdy construction that guards against tears and moisture. Their opaque finish ensures complete discretion, shielding your contents from prying eyes. When it comes to securely mailing oversized contents, these C3+ (A3+) envelopes provide ample space and protection for items such as architectural drawings, posters, or marketing collateral. They are designed with durability in mind, using polyethylene material to ensure long-lasting protection for your documents against wear and tear. Perfect for keeping your important paperwork secure and private, our envelopes feature a user-friendly peel & seal closure for hassle-free access. Trust in the quality of our opaque plastic envelopes for secure document storage. Shop now to enhance your mailing experience.