Survivor 9x12 First Class Catalog Mailers made with DuPont Tyvek material, sold in a box of 100. These open-end envelopes (model QUAR1470) are designed for mailing important documents with confidence, featuring a First Class border to communicate urgency and professionalism to recipients.

Tyvek material is lightweight yet exceptionally strong, offering resistance to tears, punctures, moisture, and chemicals for reliable performance. The Redi-Strip self-seal closure provides a clean, quick seal upon contact without requiring moisture, and a peel-off strip protects the adhesive from dust for extended shelf life. A release strip on the envelope allows recipients easy access to contents while maintaining security during transit. The lightweight construction can help reduce postage costs compared to heavier paper envelopes.