Our envelopes offer a dependable design for secure mailing. Designed to withstand harsh conditions, these envelopes are perfect for important documents that need extra protection. ✔ Size: 6" x 9", catalog style✔ 14 lb. stock, water and moisture-resistant, tear and puncture-resistant✔ Eco-friendlier, 100% recyclable, made from 10% post-industrial content✔ Custom imprint in black, red, or dark blue✔ Zip Stick® for easy self-sealExperience the durability and reliability of Tyvek® material. Customize your envelopes today with our advanced tools and enjoy fast turnaround. Perfect for businesses needing secure, eco-friendly mailing options.