Our envelopes are designed to solve the problem of fragile, easily damaged mail. Perfect for important documents, these envelopes are strong, durable, and more eco-friendly. They resist water, moisture, tears, and punctures, ensuring your contents stay safe and secure.✔ Size: 9" x 12", catalog style✔ Made from 28 lb. Tyvek® material✔ 100% recyclable with 10% post-industrial content✔ FLAP-STIK closure requires no moisteningExperience the smooth, resilient feel of Tyvek® as you protect your important mail. Customize your envelopes with our advanced tools and benefit from fast turnaround times. Order now to keep your documents safe and professional.