Upgrade your mailing experience with our envelopes. These envelopes are designed to solve the problem of fragile, easily damaged mail. Ideal for important documents, they offer unmatched durability and protection.✔ 14 lb. stock✔ Strong, water, moisture, tear, and puncture-resistant✔ Eco-friendlier: 100% recyclable, made from 10% post-industrial content✔ Size: 6" x 9", catalog style✔ Zip Stick® for easy self-sealFeel the difference with Tyvek®'s smooth, resilient texture. Perfect for sending contracts, photos, or any critical documents. Customize with advanced tools and enjoy fast turnaround. Order now to ensure your mail arrives safely and professionally.