Comments about Quill Brand� Tyvek First Class Catalog Envelopes; 9x12, 100/Box:
Would not use these for confidential or private documents or materials. They won't rip, but you can see right through them.
Bottom Line No, I would not recommend this to a friend
Merchant response: Each and every Quill Brand® product is guaranteed for life*. If you’re not 100% satisfied with your Quill Brand® product, we’ll replace the item with a national brand or refund your money.